Question: how much coffee do you need for cold brew?
Answer: The ratio of coffee grounds to water is subjective and depends on personal taste. A good place to start is to grind 3/4 cup beans for 4 cups of cold water—the size of a 32-ounce French press. You can double—with 1.5 cups beans for 8 cups water—or even triple the quantities depending on the size of your container.