nonreactive container, such as a large glass Pyrex bowl
medium strainer or sieve
fine strainer or sieve (or cheese cloth lined in the medium strainer)
2 (32 ounce) mason jars with lids (for storing the concentrate, large batch)
1 (16 ounce) mason jar with lid (for storing the concentrate, for small batch)
1pounddark roast coffeemedium ground
4ouncesdark roast coffeemedium ground
Put coffee in the container. Add 2 cups water, stirring gently to wet the grounds, then add remaining water, agitating the grounds as little as possible. Cover and let steep at room temperature for 12 hours. (For small batch, start with ½ cup water, then add the rest.)
Strain coffee concentrate through a medium sieve, then again through a fine-mesh sieve. Store concentrate in the refrigerator for up to two weeks, though I recommend using it up within a week.
You can find this recipe at https://andreasrecipes.com.