You can foam milk at home in several different ways. If you don’t have a steam wand or milk frother handy, you can use a glass jar (with a tight-fitting lid!) and microwave to foam milk. First, fill your glass jar with the desired amount of milk, then shake it for 30 seconds or until frothy, and put it in the microwave for about 45 seconds. You can also get creative with a French Press or a simple saucepan and balloon whisk.