So I know the accepted practice for cold brew is to do a coarse grind, and to brew somewhere between 8-24 hours depending on whether you’re doing it at room temperature or in the fridge.
But is this really necessary? Could I just use a finer grind and brew for less time? I’m asking because when you grind coarse, you end up having to use a lot more coffee beans (mass) than you would for the equivalent volume of any other type of coffee.
For context, I’m using a coffee sock which is just a glorified reusable coffee filter, so I don’t think that grind size is going to impact filtration that much.
I will admit I haven’t given that method as much serious consideration as I probably should. I’ve done it several times and it has always tasted different from how I like it. The main reason I probably don’t do it more often is that I don’t actually own a coffee maker of any kind.