
How to make cold brew with a coffee bag
A cold brew bag is coarse-ground coffee sealed in a paper filter pouch: steep it in cold water overnight and you have cold brew. Smooth, low in bitterness, no filtering gear needed.
- Time 12 h
- Difficulty Easy
- Serves 2 cups
- Cold brew
- Coffee
- 1 bag (20 g)
- Cold filtered water
- About 10 ml per g of coffee (20 g bag → 200 ml)
- By jar
- 1 L jar: 5 bags · 1.5 L jar: 7–8 bags
- Steep
- 12–16 h, in the fridge
- Keeps
- Sealed, in the fridge, within 24 hours
You need
- Cold brew bag · 1 bag, 20 g
- Cold filtered water · about 200 ml
- Clean jar or bottle with a lid
- Ice (optional)
Method
Put the bag in a clean jar or bottle with a lid.
Pour in cold filtered water, about 10 ml per g of coffee. Press the bag down gently so it soaks evenly.
Close it and leave it in the fridge overnight, 12–16 hours.
Lift the bag out gently (it is heavy with water and can tear), let it drain, and don't squeeze it.
Pour over ice and drink. Seal the rest, keep it in the fridge and drink it within 24 hours.
Tip: Each 20 g bag takes about 200 ml of water, so a 1 L jar needs 5 bags and a 1.5 L jar 7–8. For a stronger brew use less water or steep longer, but never squeeze the bags: it makes the coffee cloudy and bitter. Each bag is for one use only.












