What is Brew Ratio?

The charm of pour-over coffee lies in the simplicity of brewing that can reveal a multitude of flavors—from coffee varietals and origins to processing methods and roast levels. When brewing pour-over coffee, there are several variables to consider, including brew ratio, grind size, water temperature, extraction time, pouring technique, and overall balance.

Understanding Coffee-to-Water (Brew) Ratio

The brew ratio is simply the proportion of coffee grounds to water used during brewing. It primarily affects the strength or concentration of your coffee.

• Example: Using 20 grams of coffee grounds with 300 grams of water gives you a brew ratio of 1:15.

Is there a "Golden Brew Ratio"?

While there's no absolute standard or universally ideal ratio—since coffee strength preference is subjective—many coffee enthusiasts typically favor a ratio of around 1:15. However, the "golden ratio" is ultimately whatever tastes best to you.

Comparing Brew Ratios:

• 1:14 vs. 1:16:
  A ratio of 1:14 results in a stronger, richer coffee compared to 1:16, which will taste lighter. For instance:
• 20 grams coffee to 280 grams water (1:14) = Richer, stronger flavor.
• 20 grams coffee to 320 grams water (1:16) = Lighter, milder flavor.

Adjust your brew ratio according to your personal taste preferences.

Calculating Water Volume: Two Approaches

There are generally two ways to calculate the water quantity in pour-over brewing:

1. Total Water Used (Including Absorption):
   This method counts all the water you pour over coffee grounds.
• For example, using a 1:15 ratio, you pour 300 grams of water onto 20 grams of coffee grounds. However, not all of this water reaches the serving vessel because some water is absorbed by the grounds. Practically, you may only end up with about 270 grams of brewed coffee.

2. Brewed Coffee Output (Yield):
   This method calculates the amount of coffee liquid you want in your cup or carafe after brewing.
   • For instance, if you want 300 grams of brewed coffee liquid, you'll need to pour approximately 330 grams of water onto 20 grams of coffee grounds, accounting for water absorbed by the grounds.

Both methods are common and neither is universally "correct." It's essential to clarify the method being discussed when exchanging brewing tips or recipes with others.