4 cups spring water
1 generous cup coarse ground coffee
In a glass jar slightly larger than 1 quart, combine the water and coffee. Stir well. Cover the jar and refrigerate overnight, or at least 8 to 12 hours.
When ready to strain, uncover the jar and stir. Line a mesh strainer with several layers of cheesecloth, then set it over a large bowl. Pour the coffee mixture into the strainer and let the coffee concentrate drip into the pitcher. Depending on the size of your strainer, you may need to do this in batches. Discard the coffee grounds.
Pour the coffee concentrate into a clean glass jar and refrigerate until ready to drink.
To serve: Fill tall glasses with ice and any desired sweetener or cream. Pour ½ cup coffee concentrate into each glass. Stir and serve immediately.
Elizabeth Karmel for The Associated Press