Cold Brew Coffee Recipe at Home: French Press Method (12-Hour Guide)
Cold Brew Coffee Recipe Using French Press
Core Ratios and Methods
For concentrate: Use a 1:8 ratio (1 gram coffee to 8 grams water), which produces a strong concentrate that must be diluted before drinking. For ready-to-drink cold brew: Use a 1:12 ratio (8.4 grams coffee per 100 ml water), though some sources recommend a 1:5 ratio by weight as a starting point that can be adjusted based on preference.
Steeping Time
Steep the mixture for 12-24 hours at room temperature, with 18 hours recommended for optimal flavor. Sources also mention 8-12 hours as a minimum. The search results do not specify differences between room temperature and refrigerator steeping, though one source indicates steeping occurs at room temperature.
Grind Size
The search results specify using coarse ground coffee, though detailed specifications about grind particle size are not provided in these sources.
Step-by-Step Instructions for 600ml French Press
1. Weigh out 75 grams of coarsely ground coffee (using the 1:8 ratio)
2. Add the coffee grounds to the bottom of the French press
3. Pour in approximately 300ml of cold filtered water and stir well until all grounds are saturated with no dry spots
4. Add the remaining 300ml of water, leaving room at the top for the lid
5. Stir again and place the lid on with the plunger pulled all the way up
6. Refrigerate or leave at room temperature for 12-24 hours
7. Press down the plunger to separate grounds from liquid
8. Pour the concentrate into a storage container and refrigerate
The InstaCuppa Glass French Press (Rs 1,299-1,999) features borosilicate glass, 4-part filtration, and measurement markings in 350ml, 600ml, and 1000ml sizes.
Frequently Asked Questions
What is the cold brew ratio for French press?
For concentrate (dilute before drinking): 1:8 ratio — 75g coarse ground coffee to 600ml room temperature water. For ready-to-drink: 1:15 ratio — 40g coffee to 600ml water. The concentrate method is more versatile as you can adjust strength when serving.
How long should cold brew steep?
12-18 hours at room temperature or in the fridge. Under 12 hours produces a weak, under-extracted brew. Over 24 hours can become bitter. The sweet spot is 14-16 hours for most coffee beans. Steeping in the fridge takes slightly longer than room temperature but produces a smoother result.
How long does cold brew last in the fridge?
Cold brew concentrate keeps for 7-10 days refrigerated in a sealed container. Diluted cold brew keeps for 3-5 days. The French press itself is not ideal for storage — transfer to a glass bottle or jar after pressing.
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