How To Make Cold Foam With Oat Milk. The best milk to use for cold foam the foam is easy to make at home — just make sure you use authentic ingredients. I like to make a big batch of cold brew for the week but make the cold foam fresh each morning.
Next, submerge the tip of the wand and turn on the steam valve. In a cup of your choice, add ice and pour 3/4 cup of almond milk and 1 tablespoon of the matcha mixture you just mixed. To make oat milk simply grind old fashioned or steel cut (not instant) oats in grinder or food processor.
