Mason jar cold brew coffee

I've been experimenting with cold-brew coffee and have come up with something that I like. If you have a source of freshly roasted coffee beans (as in still warm from the roaster), all the better. I've only tried this starting with whole beans rather than pre-ground. YMMV.

  • 60-65 g of your favourite whole bean coffee
  • 1 quart sized mason jar
  • water

Grind the coffee beans and put them into the mason jar. The ground coffee usually ends up taking up about 1/3 of the jar.

FIll with water and put the lid on (not too tightly) and shake lightly to mix. The grounds will float up at the top for a while, but eventually will sink down to the bottom of the jar. Leave it in the fridge 1-2 days, but at least 8 hours or overnight. Give it a shake every now and then.

After a day or two, strain out the grounds. I use my coffee maker for this. Place a filter into the bowl like you normally would, and pour the coffee in. Most of the grounds will stay in the jar, which is a good thing. Let the coffee drip through into a coffee pot or some other suitable container.

Pour over ice and enjoy. You can drink it straight up, or dilute it a bit. I like to use chocolate milk in mine.