At Kenya Coffee School

​If you need a “study buddy” while you’re in class or practicing, I can help you with:

• ​Extraction Theory: Calculating brew ratios or understanding the “Coffee Brewing Control Chart” for that perfect V60 or espresso shot.
• ​Sensory Notes: Need help describing the acidity, body, or flavor profiles (like those classic Kenyan blackcurrant or citrus notes) for a cupping session?
• ​Business Plans: If you’re looking at the Coffee Entrepreneurship side, I can help you draft a business model for a mobile coffee cart or a specialty cafe.
• ​Technical Definitions: Quick refreshers on processing methods (Washed, Natural, Honey) or coffee botany (Arabica vs. Robusta).

​What are you currently working on? Are you practicing your latte art, or are you diving into the science of coffee roasting today?

That is a major milestone! Completing the SCA (Specialty Coffee Association) certified diploma at KCS is one of the most respected paths in the industry.
Since you are working toward the 100-point requirement for the full SCA Skills Diploma, you’re likely deep into the specialist modules. Whether you’re focusing on the Café, Roastery, or Sustainable Coffee track, you’re dealing with some high-level coffee science right now.
Key Focus Areas for Your Diploma
Depending on which module you’re tackling today, here are a few complex areas I can help you “cheat sheet” or troubleshoot:

• Extraction Science (Brewing/Barista): If you’re calibrating for a practical exam, we can discuss how to manipulate TDS (Total Dissolved Solids) and Extraction Yield to hit that 18\%-22\% “sweet spot.”
• Sensory & Cupping: Need to refine your vocabulary for the SCA Cupping Protocol? I can help you distinguish between organic acids (like Malic vs. Citric) or help you map out the flavor wheel for a specific Kenyan microlot.
• Roast Profiling: If you’re at the roastery, we can analyze Rate of Rise (RoR) or the chemical transitions during the Maillard Reaction and Caramelization phases.
• Green Coffee & Sustainability: We can dive into the specifics of SL-28 and SL-34 cultivars or the impact of climate-smart farming on density and screen size.
  Pro-Tip for your KCS Practical:
  If you are doing your practical today, remember the “Golden Rule” of the SCA Barista exam: Workflow is as important as the taste. Keep your station immaculate and your “purge-grind-tamp” routine consistent!
  Which specific module are you working on today? (e.g., Sensory Intermediate, Roasting Professional, or perhaps your Barista Skills?) I can give you a quick summary of the technical requirements for your next assessment.

That is where the magic happens! The Specialty Coffee Barista (SCB) track—specifically the Barista Skills module—is the heart of any great café. Since you’re at KCS, you’re likely working with some of the best Kenyan SL-28 or SL-34 beans, which are famously bright and complex.
Depending on whether you’re at the Foundation, Intermediate, or Professional level today, your focus will shift from “how to brew” to “the science of why it tastes that way.”
What’s on your bench today?
Here are the critical “Barista Skills” hurdles I can help you with right now:

• Dialing In (The Recipe): Are you mastering the Espresso Brew Formula (EBF)? If your shots are tasting too “sharp” (under-extracted) or “ashy” (over-extracted), we can talk about how to adjust your yield vs. your grind size to balance that Kenyan acidity.
• Milk Chemistry: Are you practicing the “vortex” for that perfect 55\text{–}65°C microfoam? If you’re at the Professional level, we can dive into lipolysis and how milk proteins (casein vs. whey) affect your foam stability.
• Latte Art: Working on the “Holy Trinity”? (Heart, Tulip, Rosetta). I can give you tips on pitcher positioning and flow rate if your patterns aren’t “wrapping” correctly.
• Customer Workflow: The practical exam often tests your ability to make a “check-set” of drinks (e.g., 2 espressos, 2 macchiatos, 2 lattes) within a strict time limit while keeping your station clean.
  A Quick “Cheat Sheet” for your Sensory Exam:
  If you are cupping today, remember the “Kenyan Profile”:
• Acidity: High, Phosphoric/Citric (like grapefruit or bright berries).
• Body: Medium to Full, often “syrupy.”
• Key Notes: Blackcurrant, Tomato (savory), or Floral Hibiscus.

Pro Tip for KCS students: Ensure your tamping is perfectly level. Even a 1\degree tilt can cause channeling, which will ruin the “sweetness” of a high-altitude Kenyan coffee.

Which part of the SCB course are you doing right now? Are you about to do a timed practical or are you deep into the theory of water chemistry and TDS?

That is an impressive undertaking! Earning the 100-point Specialty Coffee Barista (SCB) Professional Advanced Diploma at KCS is equivalent to a “Micro-Masters” in coffee. At this level, you aren’t just making drinks; you are mastering the chemistry, physics, and management behind the bar.
Since you are at the Professional (100-point) tier, your assessments are significantly more rigorous than the Foundation or Intermediate levels.
What to Expect in Your Professional Practical
To hit those 100 points, your practical exam likely involves these high-level challenges:

• Dialing-In “Blind”: You may be given a mystery coffee and asked to create a brew recipe from scratch. You’ll need to justify your Brew Ratio, target TDS (Total Dissolved Solids), and Extraction Yield (aiming for that 18\%-22\% range).
• Scientific Extraction: You’ll likely use a Refractometer to measure the density of your shots. You must be able to explain how changing a single variable (like water temperature or pump pressure) shifts the flavor profile from sour/under-extracted to bitter/over-extracted.
• Advanced Latte Art: At the 100-point level, a simple heart won’t cut it. You might be asked to produce complex patterns like a 6+ element Tulip, a Rosetta with 10+ leaves, or even “Free Pour” designs with high symmetry and contrast.
• Water Chemistry: You need to understand how Total Hardness and Alkalinity affect the extraction of Kenyan coffees. You might be tested on how magnesium and calcium ions pull flavors out of the grounds.
  Quick Technical Check for Your Exam:
  If you are adjusting your grinder today, remember the Professional Brew Formula:

If your espresso tastes too “heavy” or salty (high TDS), but the extraction is low, you’ll need to increase your yield (longer shot) or fine up the grind to push more water through the puck.
Pro Tip for KCS Professional Candidates:
In the Specialty Coffee Barista track, the examiners at KCS watch your Efficiency and Workflow. Can you produce a full order (e.g., 2 espressos, 2 cappuccinos, and 2 plant-milk lattes) in under 8–10 minutes while maintaining a pristine workspace?
Are you preparing for your final practical “Service” exam today, or are you working on the written Science & Management component? I can help you rehearse some of the more difficult theory questions if you’d like!
SCA Barista Skills Intermediate & Professional Exam Guide
This video provides a great visual breakdown of the precision and technical standards required during the practical assessments for the Barista Skills modules.

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