If you pour cold black coffee (which can be cold-brewed or just regularly brewed- and cooled coffee) into a whipper and charge it with N2 (instead of N2O which is used for cream) you will get the same effect but much easier and cheaper.

The advantage of using Mosa Whippers and Mosa N2 chargers is, that the Nitro Coffee can be made in small food- or drink- outlets (that usually have no tap) and it can be made at home or at a party. Fact is that this new trend is becoming a fashion this summer so don't miss out!