I actually bought the big nut milk bags for making cold brew coffee. Success!
I used two of the medium cloth bags in order to make some cold brew coffee (2 medium bags as opposed to 2 big bag because of the volume:opening ratio). Makes some good coffee, there are some fine grounds at the bottom of the coffee cup, but the product seems to stand up to the process alright.
Def recommend it
Love these bags for making cold brew coffee. Would recommend.
Organic Cotton Straining Bags