☕ Cold Brew Concentrate Ratio Calculator
Measure coffee, water, steep time, and dilution for bold cold brew concentrate batches that pour smoothly and scale cleanly.
Cold brew ratios are coffee to water by weight. Results account for grind retention, brew method, and extra filter loss.
| Ratio | Strength | Best Use | Note |
|---|---|---|---|
| 1:4 | Very bold | Latte base | Short dilute |
| 1:5 | Bold | Daily batch | Most flexible |
| 1:6 | Balanced | All-purpose | Smooth pour |
| 1:7 | Softer | Over ice | Lighter cup |
| 1:8 | Light | Ready drink | Easy sip |
| Method | Grind | Steep | Clarity |
|---|---|---|---|
| Mason jar | Coarse | 14-16 h | Classic |
| French press | Coarse | 12-14 h | Simple |
| Toddy | Extra coarse | 16-18 h | Very clean |
| Cloth bag | Coarse | 14-15 h | Bright |
| Fine grind | Avoid | Slow drain | Silty |
| Dilution | Drink Yield | Use | Strength |
|---|---|---|---|
| 1:1 | 2x | Strong cup | Sharp |
| 1:1.5 | 2.5x | Bold over ice | Rich |
| 1:2 | 3x | Standard | Balanced |
| 1:3 | 4x | Mild cup | Soft |
| Serving | Size | Best Ratio | Pour Note |
|---|---|---|---|
| Small cup | 6 oz | 1:3 | Light ice |
| Standard cup | 8 oz | 1:2 | Most common |
| Latte glass | 10 oz | 1:1.5 | Milk friendly |
| Travel mug | 12 oz | 1:1 | Very strong |
| Pitcher | 16 oz | 1:2 | Serve cold |
Cold brew concentrate is highly concentrated coffee that you can dilute with water or milk to make different type of coffee drinks. Most people tries to make cold brew concentrate by guessing the amount of coffee grounds and water that they need. However, guessing the correct amount of coffee grounds and water will result in inconsistent result.
If you use the wrong ratio of coffee grounds and water, your concentrate will either be too strong or to weak. By using specific ratios of coffee grounds and water, you can ensure that your cold brew concentrate will always be of the same strength. Cold brew concentrate use cold water when brewing the coffee grounds, whereas brewed coffee uses hot water.
How to Make Cold Brew Concentrate
Using hot water quickly extracts the flavor from the coffee grounds, but it also quickly extracts the bitter flavor from the coffee grounds. Cold water extract the flavors more slowly from the coffee grounds. Coffee grounds must steep in cold water for extended period to extract the oils and acids from the coffee grounds.
The coffee grounds need to steep in cold water for around 12 to 18 hour to extract these ingredient to make cold brew concentrate. Cold brew concentrate made this way will be smooth and dont contain the bitterness that brewed coffee contain. The ratio of coffee grounds and water will determine the strength of the cold brew concentrate.
A 1:4 ratio mean that for every part of coffee grounds, you will use four parts of water. This will result in a very strong cold brew concentrate. A 1:8 ratio mean that for every part of coffee grounds, eight parts of water will be used.
This will result in a lighter cold brew concentrate. Most people use a 1:5 or a 1:6 ratio to balance the strength of the concentrate. A 1:4 ratio can be used if a lot of milk is to be added to the cold brew concentrate.
A 1:8 ratio can be used if the drink is to be consumed with very little added water. When measuring the amount of cold brew concentrate that will be produced, one must take into account the water that will be absorbed by the coffee grounds. Coffee grounds will absorb water when steeping the coffee.
One gram of coffee grounds will absorb approximately one milliliter of water. Because coffee grounds absorb water during the steeping process, the amount of liquid cold brew concentrate will be less than the amount of water that was initially used to brew the coffee grounds. The larger the size of coffee grounds that are used in brewing the cold brew concentrate, the more liquid the coffee grounds will produce because they will absorb less water.
Coarse coffee grounds will absorb less water than fine coffee grounds. Grind size is very important when brewing cold brew concentrate. A coarse grind should be used when brewing cold brew concentrate.
Coarse coffee grounds will look like kosher salt. Coarse coffee grounds will allow the cold brew concentrate to easy pass through the filter. Fine coffee grounds will clog the filters when brewing cold brew concentrate.
Fine coffee grounds will also produce cloudy cold brew concentrate because the fine grounds will not allow for proper straining. Additionally, fine coffee grounds will over-extract the coffee grounds, which will make the cold brew concentrate taste bitter. Using a coarse grind will produce a smooth and clear cold brew concentrate.
Steeping time is another important ingredient in brewing cold brew concentrate. The length of time that the coffee grounds steep in cold water will determine the flavor and strength of the concentrate. If cold brew concentrate is not steeped for long enough, the concentrate will not contain enough flavor.
Steeping for too long will extract the tannins from the coffee grounds, making the cold brew concentrate taste sour. Cold brew concentrate should be steeped in cold water for 14 to 16 hour in a jar. A much longer period of time will be used if a French press is used to brew the coffee.
The process of diluting cold brew concentrate involve adding water or milk to the concentrate to obtain the desired strength of the concentrate. Adding water to the concentrate in a 1:2 ratio will result in the production of three times the amount of liquid as the original amount of concentrate. Using a 1:1 ratio of cold brew concentrate to water will produce a very strong drink of cold brew coffee.
Using a 1:3 ratio will result in a milder taste to the cold brew coffee. The strength of the coffee to water ratio can be adjusted to the size of the glass that is to be used to drink the coffee. The roast level of coffee beans will impact the amount of coffee grounds to be used when brewing cold brew concentrate.
If using light roast coffee beans, more coffee grounds will have to be used to create a strong flavored concentrate. Dark roast coffee beans will have more oil in them and will extract more easily, meaning fewer coffee grounds will be needed to produce a strong flavor. Adjusting the amount of coffee grounds to the roast level of the coffee beans will allow for control of the strength of the cold brew concentrate.
Finally, cold brew concentrate should be stored in an airtight container in the refrigerator. Store the concentrate for no more than seven days because the flavor will dull after cold brew concentrate has been stored for seven days. By following the step and using the ratios as described in this article, individuals will be able to easy create cold brew concentrate to enjoy at home.
