ArticleTechniques for Getting Good Beer Foam How to improve the foam in your next glass of homebrew.Already a member? Log InWritten by Chris ColbyYou'll Also Like Article MEMBERS ONLY Understanding the Science behind Beer Foam Beer foam: it’s more than just a layer at the top of your glass. Explore the science of the suds. Article FREE Fabulous Foam! A fluffy white head of foam is the perfect capper to a great beer. It enhances the appearance and flavor perception too. Make sure your beer looks as good as it tastes!