Cold Brew Ratio Calculator

- May 12, 2025
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Calculate the perfect coffee-to-water ratio for your cold brew. Cold brew typically uses a higher coffee-to-water ratio than hot brewing methods, resulting in a smooth, concentrated coffee that can be diluted before drinking.

Calculation Type

Cold Brew Strength

Brewing Parameters

Dilution (Optional)

Display Options

About Cold Brew Coffee

Cold brew coffee is made by steeping coffee grounds in cold or room temperature water for an extended period (typically 12-24 hours). This method extracts different compounds from coffee than hot brewing, producing a smoother, less acidic coffee with unique flavour characteristics.

Cold Brew Ratios Explained

Cold brew typically uses a higher coffee-to-water ratio than hot brewing methods:

  • 1:4 ratio - Concentrate (needs to be diluted before drinking)
  • 1:5 ratio - Strong brew (may be diluted slightly)
  • 1:7 ratio - Medium strength (standard cold brew)
  • 1:8 ratio - Mild brew (ready to drink)
Grind Size & Brewing Time

For cold brew, coarser grinds are generally preferred:

  • Coarse grind - The most common for cold brew, reduces sediment and bitterness
  • Medium-coarse grind - Increases extraction but may result in more sediment
  • Brewing time - Longer brewing (16-24 hours) extracts more flavour but can increase bitterness
Storage & Shelf Life

Cold brew concentrate can be stored in the refrigerator for up to 2 weeks. The prepared (diluted) cold brew is best consumed within 3-4 days for optimal flavour.

Understanding the Cold Brew Ratio Calculator

The Cold Brew Ratio Calculator is a handy tool for coffee lovers who want to make the perfect cold brew. It helps you figure out the ideal coffee-to-water ratio. Cold brew coffee is different than regular coffee; it uses more coffee grounds, making it smooth and rich. This means you can enjoy a delightful beverage that can be adjusted to your taste.

Why Choose Cold Brew?

Cold brew coffee offers a unique flavour profile and is often less acidic than hot coffee. Many people prefer it for its smoothness and refreshing nature. Here are some reasons why you might want to try cold brew:

  • Less acidity means it’s easier on the stomach.
  • It has a rich and smooth taste, great for warm days.
  • Cold brew can be stored for longer periods without losing flavour.

How the Calculator Works

This calculator allows you to choose how you'd like to calculate your ratio, whether by coffee amount or water amount. You can select the strength of your brew, from mild to strong. If you have a specific ratio in mind, there’s even an option for a custom setting. This flexibility makes it perfect for anyone, whether you're new to cold brew or a seasoned expert.

Selecting Your Brew Strength

With this calculator, you can easily pick your desired cold brew strength. The options range from mild to concentrate. Here’s a quick look at the typical strengths:

  • Mild (1:8 ratio)
  • Medium (1:7 ratio)
  • Strong (1:5 ratio)
  • Concentrate (1:4 ratio)

Choosing the Right Ingredients

To make cold brew, you need to select the right amount of coffee and water. The calculator will guide you in measuring these ingredients accurately. You can input how much coffee you’d like to use, and it will calculate the corresponding water needed. This ensures you won't waste ingredients and can create a delicious brew every time.

Understanding Grind Size and Brew Time

The grind size of your coffee can affect the cold brew's taste. Coarse grinds are preferred as they help reduce bitterness. The calculator also allows you to set your brew time. Generally, longer brew times enhance the flavour but might increase bitterness if overdone. Balancing these two factors is crucial for the best results.

Optional Dilution and Serving Size

If you want to dilute your cold brew, the calculator can assist with that too! You can choose a dilution ratio based on your preferences. Plus, you can determine how many servings you need, ensuring you make just the right amount for your gathering or personal enjoyment.

Tips for Perfect Cold Brew

Making cold brew is simple, but a few tips can help you out:

  • Always use coarsely ground coffee for the best results.
  • Experiment with brew times to find what you enjoy most.
  • Store your cold brew concentrate in the fridge for up to two weeks.