At some point in every coffee journey, curiosity turns inward. You start asking not just what you like in a cup, but why you like it. What makes one brew feel vibrant and juicy, while another feels rich and comforting? How do baristas talk about balance between acidity, sweetness, and bitterness?
At The Bean Embassy in Siem Reap, we believe the answer lies in learning to taste with structure—through an understanding of brew strength, extraction yield, and palate training.
Tasting coffee deeply isn’t about memorizing flavor notes.
It’s about developing a framework for evaluating how the coffee was brewed, how the variables interacted, and how that shows up on your tongue. We teach that tasting is both analytical and emotional. The better you understand what you’re tasting, the more joy and clarity you bring to every cup.
What Is Brew Strength?
Concentration in the Cup
Brew strength refers to how concentrated your coffee is—how much of what’s in your cup is dissolved coffee solids versus water.
It’s measured as Total Dissolved Solids (TDS) and expressed as a percentage:
- A filter coffee might measure 1.2%–1.5% TDS.
- An espresso often falls between 8%–12% TDS.
The rest? Water.
You don’t need a refractometer to appreciate strength—you can taste it. A cup with high strength will feel intense, full, and possibly overwhelming. A low-strength cup may feel watery, flat, or underdeveloped.
Strength vs. Extraction
It’s easy to confuse brew strength with extraction yield (we’ll cover that next), but they’re different:
- Strength is about how strong the cup tastes.
- Extraction is about how much of the coffee grounds was dissolved.
You can have a strong but poorly extracted cup—and vice versa. The magic happens when both are balanced.
Adjusting Strength
You can manipulate strength in a few key ways:
- More coffee (higher dose) = stronger cup.
- Less water = stronger cup.
- Finer grind = more extraction, often increasing perceived strength.
- Brew time also impacts strength, as longer contact allows more solids to enter the cup.
In our training, we help students experiment with ratios like 1:15, 1:16, or 1:17 (grams of coffee to water) and observe how that changes body and intensity.
What Is Extraction Yield?
The Science of Dissolving Flavor
Extraction yield is the percentage of the coffee grounds that ended up in your cup. Coffee is about 30% soluble, but only about 18–22% is typically extracted to make a balanced, flavorful brew.
If you extract too little (under-extraction), the coffee may taste sour, salty, or sharp. If you extract too much (over-extraction), bitterness and dryness dominate.
A simplified way to think about it:
- Under-extracted = sour, sharp, lacks sweetness
- Well-extracted = sweet, balanced, complex
- Over-extracted = bitter, harsh, drying
We don’t just teach this with charts—we teach it with taste. At The Bean Embassy, our palate training includes triangulation tastings where students compare under-, well-, and over-extracted brews of the same coffee.
Factors That Affect Extraction
Understanding how to manipulate extraction is a skill that connects brewing to flavor.
Key variables include:
- Grind size: Finer = more surface area = more extraction
- Water temperature: Hotter = faster extraction
- Brew time: Longer = more extraction (to a point)
- Agitation: Stirring, swirling, or pouring techniques can speed up extraction
- Brew ratio: Changes both strength and extraction dynamics
We guide students to adjust one variable at a time and taste the results. Learning to feel and describe the shift between extraction stages is how a barista trains both precision and intuition.
The Sensory Triangle: Acidity, Sweetness, Bitterness
Balancing the Cup
All great coffee lives in a triangle of flavor—acidity, sweetness, and bitterness. When these three elements are in harmony, the coffee feels rounded, complete, and satisfying.
Each element has a role:
- Acidity brings brightness and liveliness—think citrus, green apple, or floral tartness.
- Sweetness gives structure and body—it balances and softens acidity and bitterness.
- Bitterness adds depth and finish—but too much can be overwhelming.
Poor extraction, incorrect grind size, or roast mismatch can easily throw this balance off. That’s why palate training includes learning to taste and adjust for balance.
Tasting for Balance
We often serve students a series of small brews and ask them:
- Where is the acidity sitting?
- Is there enough sweetness in the mid-palate?
- Does bitterness linger, or is it clean and pleasant?
You don’t need to describe your cup with elaborate metaphors—you just need to notice what stands out and what’s missing.
As your palate develops, you begin to “hear” the coffee more clearly: This is sweet but needs more structure… This is vibrant but feels unfinished… This is strong but drying…
That’s how baristas learn to brew with purpose, not just procedure.
Developing Sensory Awareness
Practice, Patience, and Curiosity
Taste is a skill like any other. It gets stronger the more you use it. And like learning music or movement, you don’t become fluent overnight.
We recommend three regular practices to grow your sensory awareness:
1. Taste Side by Side
The fastest way to build a palate is to compare. Brew the same coffee at different ratios, roast levels, or grind settings. Take notes. Ask questions. Train your tongue to detect contrast.
2. Cup Regularly
Cupping—tasting coffees in a standardized, side-by-side setup—reveals subtle differences that you might miss in a latte or pour-over. We cup with students weekly to build vocabulary, memory, and intuition.
3. Keep a Flavor Journal
Write down what you taste. Even if you’re unsure. Tracking your notes helps you identify patterns, preferences, and progress.
We encourage you to start simple:
- “Tastes bright and fruity”
- “Feels flat, maybe over-extracted”
- “Sweet start, bitter end”
Over time, your vocabulary deepens naturally.
Why Palate Training Matters
From Brewing to Communication
When you understand strength and extraction, you can troubleshoot your brews, adjust your methods, and bring more intention to your work.
When you understand flavor balance, you can design drinks, educate customers, and build trust in your taste.
Training your palate doesn’t just help you taste coffee—it helps you understand what’s happening inside the cup, and how to recreate or refine it.
Taste as a Common Language
At The Bean Embassy, we see taste as a way to connect across roles, cultures, and preferences. Farmers taste to evaluate crops. Roasters taste to craft profiles. Baristas taste to serve consistently. Customers choose what they love.
By developing your own palate, you become part of that conversation. You’re no longer guessing. You’re listening to coffee—and speaking its language in return.