Cold-brewed coffee is actually dirt simple to make at home....But you can also bang it out with a Mason jar and a sieve. You just add water to coffee, stir, cover it and leave it out on the counter overnight. A quick two-step filtering the next day (strain the grounds through a sieve, and use a coffee filter to pick up silt), a dilution of the brew one-to-one with water, and you’re done. Except for the time it sits on the kitchen counter, the whole process takes about five minutes.
And:
New Orleans Cold Drip Coffee
Adapted from Blue Bottle Coffee company
Makes 8 cups coffee concentrate
1 pound dark roast coffee and chicory, medium ground
10 cups cold water
Ice
Milk.
1. Put coffee in a nonreactive container, like a stainless-steel stockpot. Add 2 cups water, stirring gently to wet the grounds, then add remaining 8 cups water, agitating the grounds as little as possible. Cover and let steep at room temperature for 12 hours.
2. Strain coffee concentrate through a medium sieve, then again through a fine-mesh sieve.
3. To make iced coffee, fill a glass with ice, add ¼ cup coffee concentrate and 3/4 to 1 cup milk, then stir. To make cafĂ© au lait, warm 3/4 to 1 cup milk in a saucepan or microwave, then pour into a mug and add ¼ cup coffee concentrate. (Concentrate will keep in the refrigerator for up to two weeks.)