Brewing and espresso courses

A complete transition from a home enthusiast to a professional cafe barista requires shifting your focus from slow, single-cup perfection to high-speed workflow efficiency, commercial machine handling, volume consistency, and active customer hospitality.instagram.com

The structured online curriculum below is designed to bridge that exact gap, combining recognized digital training platforms with a self-paced roadmap.onlinebaristatraining.com+1

Recommended Primary Online Platforms

• Online Barista Training: Backed by Bellissimo Coffee Advisors, this program features a 9-module video curriculum (covering coffee culture, espresso prep, milk steaming, and bar flow) tailored directly for individual baristas and commercial environments.onlinebaristatraining.com
• Barista Hustle: An industry-standard digital learning hub renowned for deep dives into extraction science, water chemistry, dial-in math, and professional workflow standards.youtube.com+1
• Specialty Coffee Association (SCA) Resources / Online Modules: Useful for understanding global coffee standards, though practical application should be paired with real machine time.

The 6-Stage Professional Barista Curriculum

Module 1: Commercial Machine Mechanics & Maintenance

• Commercial Hardware: Understanding dual-boiler systems, volumetric vs. manual paddle dosing, group heads, and commercial burr grinders (flat vs. conical, heat management).
• Daily & Hourly Maintenance: Backflushing with chemical detergent, purging group heads, cleaning steam wands instantly after every use, and brushing/wiping baskets.
• Water Quality & Filtration: Understanding scale, mineral content, and why commercial water specs differ from home setups.

Module 2: Speed, Recipe Math & Dialing In

• The Pro Recipe: Moving away from " eyeballing" to strict in-to-out ratios (e.g., 20g in to 40g out in 28–32 seconds) using a scale on the drip tray.
• Dialing In Under Pressure: How to adjust your grind size on the fly when humidity, temperature, or bean age shifts mid-shift without wasting 20 minutes.
• Grinder Retention & Dosing: Managing single-dosing vs. hopper management in a busy rush.

Module 3: Commercial Milk Mechanics & Microfoam

• High-Power Steam Wands: Adapting from low-pressure home wands to commercial steam boilers that stretch milk in 4 to 6 seconds.
• Texturing Standards: Mastering the distinct microfoam requirements for a 6oz cortado, an 8oz/10oz cappuccino, and a 12oz–16oz latte.
• Speed Pouring: Executing foundational latte art (heart, rosetta, tulip) repeatedly while managing multiple milk pitchers at once.youtube.com

Module 4: High-Volume Bar Flow & Ergonomics

• Bar Layout & Station Setup: Organizing your station (tamper, knock box, milk pitchers, rags, cup stack) for zero wasted steps.
• Multi-Tasking (Ticket Management): Pulling shots while steaming milk, spinning the next ticket, and communicating with the register/expo person.
• The "Queue" Mindset: Working clean, wiping down counters between drinks, and maintaining a calm, rhythmic pace when facing a line of 15 people.

Module 5: Traditional & Specialty Menu Execution

• Menu Accuracy: Memorizing standard commercial builds and volumes:
  • Espresso: 2 oz double shot.
  • Macchiato: Espresso marked with a dollop of foam.
  • Cortado: Equal parts espresso and textured milk.
  • Cappuccino: Traditional layered foam-to-liquid ratio.
  • Latte / Flat White: Microfoam-dominant milk drinks with optional syrups.youtube.com
• Alternative Milks: Managing oat, almond, and soy milk behavior (which scorch faster and stretch differently than dairy).

Module 6: Hospitality & Customer Communication

• The Human Element: Realizing that speed and accuracy matter, but a warm greeting, eye contact, and grace under pressure dictate whether a customer returns.
• Handling Mistakes: Remaking a drink calmly and gracefully without defensiveness when an order is wrong or a shot channels.instagram.com

Suggested 4-Week Self-Study Schedule

If you'd like, let me know:

• Do you have access to a commercial-style or semi-commercial machine at home right now?
• Are you aiming for a specialty third-wave shop or a high-volume traditional cafe?

I can help you tailor your practice routine or point you toward specific local or virtual gear setups.

Your roadmap from home coffee enthusiast to professional barista

The best way to make this transition is to combine structured online learning, deliberate practice, and real café experience. Making excellent coffee at home is a great foundation, but professional barista work also requires consistency under pressure, efficient workflow, milk texturing, equipment maintenance, and customer service.

I recommend a 12-week curriculum that takes you from core coffee science to café-ready skills, with a clear path toward an industry-recognized qualification.

The strongest formal framework to build around is the Specialty Coffee Association (SCA) Coffee Skills Program. Its Barista Skills pathway progresses from Foundation through Intermediate to Professional, covering espresso preparation, milk texture, workflow, quality control, and advanced drink preparation.sca.coffee+1

Your learning pathway at a glance

• 

WEEKS 1–2

Phase 1 — Coffee foundations

Origins, roast levels, grinders, brewing fundamentals, and sensory vocabulary.

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• 

WEEKS 3–5

Phase 2 — Espresso mastery

Grind adjustment, dose, yield, shot timing, extraction troubleshooting, and repeatability.

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• 

WEEKS 6–7

Phase 3 — Milk and latte art

Microfoam, steaming technique, temperature control, and pouring basic patterns.

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• 

WEEKS 8–10

Phase 4 — Café operations

Drink recipes, station setup, cleaning, food safety, customer service, and busy-period workflow.

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• 

WEEKS 11–12

Phase 5 — Job readiness

Timed drink preparation, quality checks, mock shifts, a skills portfolio, and job applications.

Suggested pace: 5–8 hours per week, including hands-on practice. This is a training plan, not a guarantee of professional proficiency in 12 weeks.

1. The best online courses to follow

These are the resources I would actually use to build your curriculum, in order of priority.

• 

1. Barista Hustle — Barista One

(Best core course)

Online · Structured lessons and assessment

This is my first choice for a home enthusiast preparing for café work. It covers espresso preparation, dose and yield, grind adjustment, channeling, milk texturing, latte art, menu drinks, hygiene, and efficient workflow.www.baristahustle.com+1

Explore Barista One

Budget note: the course page lists a single-course price of $149 USD; verify the current price before enrolling.

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2. Specialty Coffee Association — Barista Skills

Foundation → Intermediate → Professional

Use this pathway if you want formal training and a recognized industry credential. Foundation covers essential drinks, cleaning, and service; Intermediate develops extraction, milk, and workflow; Professional adds quality control and advanced drink preparation.sca.coffee+1

View the official SCA curriculum

Important: Some theory can be studied remotely, but practical skills and assessments may require hands-on training with an authorized trainer.

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3. James Hoffmann — Free video lessons

Free · Visual demonstrations

Supplement your coursework with detailed demonstrations of milk steaming, espresso technique, and troubleshooting.

Watch the milk-steaming tutorial

Use these videos to observe technique, then practice and record your own results.www.youtube.com

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4. Barista Hustle — Latte Art

Optional specialist course

Add this when you can already make repeatable espresso. Its dedicated course covers milk steaming and latte art from the basics to more advanced pours.www.baristahustle.com

Browse Barista Hustle courses

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5. Alison — Becoming a Professional Barista: The Basics

(Free starting point)

A short beginner course introducing coffee types, brewing methods, equipment, and the barista profession. It's useful for orientation, but not a substitute for hands-on espresso practice.alison.com

Take the introductory course

2. Your detailed 12-week study plan

Use this weekly syllabus alongside your chosen core course. Each week should end with something you can demonstrate, not just a lesson you've watched.

Weeks 1–2: Coffee fundamentals

Target: understand what you're making and why.

• Study coffee origins, processing, roast development, freshness, and storage.
• Learn the purpose of the grinder, burrs, portafilter, baskets, group head, and steam wand.
• Taste two coffees side by side and describe acidity, sweetness, bitterness, body, and aftertaste.
• Learn basic espresso terminology and standard café drink names.

Assessment: Explain how roast level, grind size, dose, and freshness affect your coffee.

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Weeks 3–5: Espresso and extraction

Target: reproduce a balanced shot and diagnose problems.

• Learn to weigh coffee grounds and espresso output.
• Practice consistent puck preparation, distribution, and tamping.
• Adjust grind size to control flow, then adjust recipes by taste.
• Understand dose, yield, brew ratio, shot time, and channeling.
• Keep a shot log: recipe, grinder setting, time, taste, and next adjustment.

Assessment: Produce five consecutive shots that meet your chosen recipe and taste target, with minimal variation.

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Weeks 6–7: Milk and latte art

Target: produce smooth, consistent milk texture.

• Learn steam-wand safety, positioning, air incorporation, and milk rolling.
• Practice glossy microfoam for lattes and appropriately textured milk for cappuccinos.
• Learn to control temperature and avoid large bubbles or overheated milk.
• Practice a heart, then a simple tulip.
• Repeat with dairy and the alternative milks commonly used by cafés.

Assessment: Steam several pitchers with a similar texture and temperature, then pour recognizable patterns.

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Weeks 8–10: Working behind the bar

Target: work cleanly and efficiently.

• Memorize the core menu: espresso, americano, cappuccino, latte, flat white, mocha, and iced variations.
• Learn opening and closing checklists, grinder cleaning, backflushing where appropriate, and daily machine care.
• Practice sequencing espresso shots and milk drinks without wasting ingredients.
• Study allergen awareness, cross-contact prevention, customer communication, and order accuracy.
• Simulate a queue of several different drinks and maintain a clean station throughout.

Assessment: Complete a mock service without losing track of orders or neglecting cleaning and quality checks.

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Weeks 11–12: Professional readiness

Target: demonstrate the habits an employer needs.

• Practice following a café's written recipes instead of relying on personal preference.
• Perform timed mock service, including a mix of espresso and milk drinks.
• Practice explaining coffee options to a customer and responding to a remake request.
• Prepare a short résumé emphasizing transferable skills, training, and practical coffee experience.
• Apply for entry-level barista positions and seek a trial shift or supervised practice where available.

Assessment: Complete a mock shift with consistent drinks, accurate orders, safe equipment handling, and an orderly station.

3. How to practice without a professional café machine

Online courses teach theory well, but you need access to commercial-style equipment before you can confidently demonstrate every barista skill.

A useful weekly routine is three short theory sessions and two practical sessions. When practicing espresso, change one variable at a time and record the result. When practicing milk, prioritize texture and repeatability before elaborate latte art.

4. Build a portfolio employers can evaluate

By the end of the curriculum, aim to have the following:

• A completed core online barista course.
• An espresso recipe log with tasting notes and troubleshooting examples.
• Demonstrated milk-steaming and basic latte-art skills.
• A written opening, cleaning, and closing checklist.
• A memorized café menu and understanding of drink preparation.
• A résumé and, ideally, feedback from a working barista or trainer.

My recommendation: Start with Barista Hustle's Barista One, supplement it with free video demonstrations, and investigate SCA Barista Skills Foundation training once you know what practical experience and certification you want. Then prioritize real café exposure. A certificate can strengthen your application, but it doesn't replace the ability to make consistent drinks during a busy shift.

Let's tailor this curriculum to your setup

I can make the plan much more specific if I know one thing first: what espresso equipment do you currently have at home?

1. Your current equipment

Espresso machine and grinder

Entry-level espresso machine, no dedicated grinder

Pour-over, French press, AeroPress, or similar

No dedicated equipment yet

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2. Training budget

Mostly free resources

Up to $200

$200–$600

Flexible budget for certification and practical training

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3. Your career goal

Get hired at a specialty café

Get hired at a high-volume café

Become an advanced specialty barista

Eventually open my own café

[Personalize my curriculum]

Best online coffee education programs for aspiring baristas

If you're looking to start a career as a barista, I'd prioritize programs that teach espresso extraction, milk steaming, grinder calibration, coffee fundamentals, and customer-facing skills—not just coffee appreciation or home brewing.

One important distinction: an online certificate can help you demonstrate knowledge to employers, but barista work is hands-on. The strongest route is usually an online course paired with practice on an espresso machine and, if possible, some in-person training or café experience.

I'll compare established coffee education providers by career relevance, credential value, flexibility, and how useful their training is for getting your first café job.

My top picks

• 

1. Barista Hustle

(Best overall for beginners)

Online • Self-paced • $149 for Barista One

A career-focused espresso course covering dosing, tamping, extraction, troubleshooting, milk texturing, and café workflow. It includes over 40 videos, assessments, and lifetime access to the individual course.www.baristahustle.com+5

Best for: Someone who wants a structured introduction to working behind an espresso bar.

Explore Barista One

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2. Specialty Coffee Association (SCA)

(Best industry credential)

Foundation, Intermediate, Professional • Trainer-dependent pricing

Its Barista Skills pathway progresses from basic espresso drinks and cleaning to extraction control, milk texture, efficient workflow, and advanced service. Certificates can count toward an SCA Skills Diploma. Some study can be remote, but practical skills require hands-on assessment.sca.coffee+5

Best for: Applicants who want a recognized credential and a longer-term path into specialty coffee.

Explore SCA Barista Skills

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3. Bellissimo Coffee Advisors — Online Barista Training

Self-paced • Intro course from $19.95; full training subscription

Covers espresso preparation, milk steaming, latte art, manual brewing, cleaning, equipment maintenance, coffee origins, and roasting. The full professional course offers 178 videos, quizzes, and a certificate of completion. The individual plan is listed at $49.95 for the first three months, then $14.95 per month.www.onlinebaristatraining.com+1

Best for: Someone who wants broad café-oriented training with a relatively accessible entry point.

Explore Online Barista Training

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4. The Global Coffee School

Guided online learning • Fundamentals: £80 for 8 weeks

Offers an eight-week Fundamentals course led by coffee expert Gwilym Davies, plus shorter courses in sensory skills and plant-based coffee craft. It is a good option for structured learning, though its Fundamentals course is framed around home coffee mastery rather than a formal professional barista qualification.theglobalcoffeeschool.com+1

Best for: A beginner who wants a guided introduction before investing more in professional training.

Explore The Global Coffee School

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5. Total Barista – Professional Barista Course

Self-paced • Price varies by promotion

Covers grinder use, dosing, tamping, espresso extraction, milk frothing, latte art, specialty drinks, and customer service. The course listing shows a 4.6/5 rating from more than 3,000 ratings, though ratings and sale prices can change.capitalone.udemy.com+5

Best for: Budget-conscious learners who want to sample the fundamentals before committing to a more expensive program.

Find the course on Udemy

How to interpret these rankings: These are my recommendations based on career relevance, curriculum, credential options, and value—not a definitive ranking of verified independent customer ratings. Only the Total Barista listing above provides a comparable numerical learner rating in the sources reviewed.

Side-by-side comparison

Sources: official course descriptions from www.baristahustle.comeducation.sca.coffeewww.onlinebaristatraining.comtheglobalcoffeeschool.comwww.classcentral.com.

Which one should you choose?

If you want to get hired as quickly as possible

Start with Barista Hustle's Barista One, then practice dialing in espresso and steaming milk. Apply for entry-level café positions while building your skills.

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If you want the strongest formal credential

Look for SCA Barista Skills Foundation training with an authorized trainer, ideally including in-person machine practice and assessment.

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If you have a tight budget

Compare Bellissimo's $19.95 home course with Total Barista's current sale price. Put some of your budget toward hands-on practice rather than spending everything on certificates.

A practical 30-day plan to prepare for a barista job

1. Week 1: Learn coffee basics, espresso equipment, drink names, and café terminology.
2. Week 2: Study grinding, dosing, tamping, shot timing, and espresso extraction.
3. Week 3: Practice milk steaming, basic latte art, drink preparation, cleaning, and workflow.
4. Week 4: Get supervised practice if possible, prepare a résumé, and apply to cafés. Ask whether local cafés train new hires on their own machines.

The key is not to wait until you've completed every course before applying. Many cafés value reliability, customer service, willingness to learn, and a good attitude alongside coffee skills.

One question that would help me narrow this down: What's your approximate budget for training?

1. Training budget (USD)

Under $50

$50–$100

$100–$200

$200+

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2. Access to equipment

No espresso machine

Home espresso machine

Access to a café machine

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3. Your main goal

Get hired soon

Earn a recognized certificate

Build specialty coffee skills

[Find my best-fit program]

Starting a career as a barista requires a blend of core technical mechanics (espresso extraction, milk science, workflow efficiency) and theoretical knowledge (coffee origins, water chemistry, brewing science). Because coffee making is inherently tactile, pure online programs focus heavily on the science, technique frameworks, and workflow theory, which you then apply on a machine.

A comparison of the top-rated online coffee education options reveals distinct choices depending on budget, depth, and career goals:

• Barista Hustle (Online Education Platform)
  • Best For: Comprehensive, industry-respected technical mastery and modern specialty coffee science.
  • Curriculum & Format: Offers specialized deep dives like Barista One (a 20-hour professional espresso course) alongside modules on water chemistry, milk science, and advanced extraction. Delivered via high-production video libraries, text guides, and rigorous testing.
  • Certification: Printable certificates tied to module final exams.
  • Cost: Individual courses range from $129 to $179, or via the BH Unlimited subscription at $18/month (cancel or pause anytime). Explore options on the Barista Hustle Education Products page.baristahustle.com+3
• Online Barista Training (Bellissimo Coffee Advisors)
  • Best For: Absolute beginners looking for a structured, affordable overview of cafe operations and drink building.
  • Curriculum & Format: Features 9 core modules spanning 178 videos, covering coffee culture, espresso prep, milk steaming/latte art, and manual brewing. Backed by decades of consulting experience.
  • Certification: Non-accredited certificate of completion.
  • Cost: Home & Enthusiast plan is $19.95 (one-time) or Individual Barista Training starting at $49.95 for 3 months. Sign up or review details at Online Barista Training.onlinebaristatraining.com
• Specialty Coffee Association (SCA) - Coffee Skills Program
  • Best For: Globally recognized professional credentials and career mobility.
  • Curriculum & Format: Modular approach (Introduction to Coffee, Barista Skills, Brewing , etc.). While the theory and foundational components can be engaged with online, the SCA framework ultimately requires hands-on practical testing with an Authorized SCA Trainer (AST) for official certification.
  • Certification: Highly prestigious credit-based certificates (CSP points leading to the SCA Coffee Diploma).
  • Cost: Varies widely by local trainer/regional chapter. Learn how to map out a path via the Specialty Coffee Association Education Overview.sca.coffee+2
• Udemy (Professional Barista & Espresso Courses)
  • Best For: Casual, budget-friendly baseline introductions before committing to a commercial path.
  • Curriculum & Format: Self-paced, bite-sized courses taught by various independent instructors (such as Total Barista or Professional Barista Level 1 ). Typically ranges from 2 to 3 hours of video content focusing on basic machine operation and drink formulas.
  • Certification: Basic certificate of completion.
  • Cost: Frequently discounted heavily, often priced around $12 per course. Browse available classes on Udemy Coffee Courses.udemy.com

If you'd like to narrow this down, let me know:

• Do you have access to an espresso machine to practice on while you learn?
• Are you looking for a quick foundation to get hired locally, or a deep-dive specialty credential?

I can recommend the exact program track that fits your timeline.

When it comes to deeply technical, science-backed online education specifically targeting espresso extraction and milk science, Barista Hustle stands virtually alone as the industry gold standard for online coffee academies.baristahustle.com

While other coffee schools offer great high-level or introductory modules (such as Clive Coffee’s self-paced espresso courses or various regional in-person academies), Barista Hustle has built dedicated, peer-reviewed, heavily researched standalone certificate courses for these exact subjects.baristahustle.com+1

The standout curricula available online for these specific topics include:

1. Advanced Espresso Course & Certification (Barista Hustle)
   • What it covers: 10 intensive online chapters examining the physics of extraction, machine and grinder engineering, particle distribution, and the microscopic mechanics of channeling.
   • The science: Developed with input from research chemists and solubility scientists (like Professor Steven Abbott), it cuts past traditional "rules of thumb" to look at actual extraction yield, fluid dynamics, and pressure/flow profiling through a rigorous scientific lens.
   • Format: 100% online, self-paced (up to 30 hours of text, video, and at-home experiments), finished with a strict proctored mastery test for accreditation. Available via Barista Hustle Advanced Espresso.baristahustle.com
2. Milk Science Course & Certification (Barista Hustle)
   • What it covers: Uniquely treats milk texturing not just as a tool for latte art, but as a food-science discipline.
   • The science: Explores the physics of steam injection, protein denaturation, fat globule behavior, foam stability mechanics, and how dairy processing, cow diets, and farming practices alter the micro-foam structure in your cup.
   • Format: Online certification course designed to optimize gloss, stability, and sensory impact. Available individually or via their continuous platform via Barista Hustle Milk Science.baristahustle.com

(Note: If you want to supplement an online curriculum with deep-dive text, consider picking up a copy of The Physics of Espresso by astrophysicist and coffee researcher Jonathan Gagné, which is widely considered the ultimate companion textbook to these digital courses). [1][2]

If you're looking to dive in, let me know:

• Are you looking for professional/commercial barista certification or home-setup optimization?
• Do you want to focus heavily on water chemistry and refractometry alongside extraction?

I can help you prioritize which modules or reading materials to tackle first.

If your priority is a genuinely technical understanding of espresso extraction and milk science, rather than just learning how to make café drinks, I would put Barista Hustle at the top of the list.

There are several worthwhile online coffee education providers, but they differ considerably in scientific depth, curriculum structure, and practical training.

Here are the strongest options based on their published course content.

Best online coffee academies

• 

(Best overall for coffee science)

1. Barista Hustle

Australia / International · Fully online courses

The strongest match for advanced espresso extraction and milk science.

urlAdvanced Espressoturn791694search6 · urlMilk Scienceturn791694search8

Why it stands out:

• Advanced Espresso: 80 lessons, 10 chapters and approximately 30 hours of study.
• Extraction physics, grind distribution, channeling, solubility, and machine and grinder engineering.
• Milk Science: over 40 videos and seven chapters, with up to 30 hours of study.
• Milk proteins, fat globules, lactose, surfactants, foam stability, drainage, and steam-wand mechanics.
• Quizzes, assessments and course certificates.

This is particularly impressive because it explains why techniques work at a scientific level, rather than simply prescribing techniques.www.baristahustle.com+2

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2. Specialty Coffee Association (SCA)

International · Distance and blended learning

Best for structured professional education and recognized qualifications.

urlCoffee Skills Programturn791694search0

Why it stands out:

• Barista Skills has three progressive levels: Foundation, Intermediate and Professional.
• Intermediate covers extraction variables and consistent milk texturing.
• Professional develops quality control, recipe development and advanced latte art.
• The wider Coffee Skills Program also includes Brewing and Sensory Skills.

The full Barista Skills pathway represents 42 hours of instruction. However, practical skills require hands-on training, so it isn't entirely an online-only qualification.education.sca.coffee+1

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3. Online Barista Training (Bellissimo Coffee Advisors)

Australia · Fully online

Best for practical, structured barista training.

urlAcademy websiteturn791694search2 · urlCourse curriculumturn791694search10

Why it stands out:

• Nine modules and 178 training videos.
• Espresso preparation, grinding, dosing, tamping and extraction.
• Milk steaming, texturing and latte art.
• Drink construction, brewing and equipment maintenance.
• Module quizzes and a certificate of completion.

It offers a broad, practical curriculum, although its published content is less focused on the underlying chemistry and physics of milk than Barista Hustle.www.onlinebaristatraining.com+2

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4. Coffee ad Astra — Jonathan Gagné

Online technical education and research

Best supplementary resource for advanced extraction science.

Coffee ad Astra website

Why it stands out:

• Physics-based explanations of coffee brewing.
• Extraction, particle distribution, water chemistry and brewing variables.
• Research-oriented articles and data-driven experiments.

This is better viewed as an advanced learning resource than a complete barista academy. Its emphasis is much more on coffee extraction than milk science.

How they compare

These are qualitative assessments of the published curricula, not independent examination scores.

My recommendation: the most effective learning pathway

If I were building an advanced barista education program, I'd combine these courses:

Advanced coffee science curriculum

1. Barista Hustle – Advanced Espresso

   Approximately 30 hours

   Master extraction mechanics, grind distribution, channeling, solubility and espresso variables.

2. Barista Hustle – Milk Science

   Up to 30 hours

   Study milk composition, protein chemistry, fat, foam formation, stability and steaming mechanics.

3. Coffee ad Astra – Advanced reading

   Develop a deeper understanding of extraction physics, brewing research and experimental methods.

4. SCA – Professional Barista Skills

   Add structured professional assessment, practical skills and an industry-recognized qualification.

One important distinction

There are two different types of coffee education:

• Technique-focused: How to dial in espresso, steam milk, pour latte art and make consistent drinks.
• Science-focused: Why extraction changes with grind size, pressure, temperature, water chemistry, milk proteins, fat content and foam structure.

For someone wanting mastery rather than basic barista certification, the second category is particularly important.

My final verdict: Barista Hustle is the clear first choice for the combination of espresso extraction science and milk chemistry. SCA is the strongest complement if professional qualifications and practical assessment also matter.

I would be happy to put together a more advanced comparison of the actual lesson-by-lesson curricula, including espresso chemistry, extraction physics, milk protein chemistry, microfoam stability and alternative milk science.