A cocktail can be balanced in sweetness, acidity, bitterness and alcohol and still feel wrong. Sometimes the problem is texture. Modern bars can adjust viscosity, foam, suspension, emulsification and gel structure with ingredients such as xanthan gum, gum arabic, lecithin, agar and gellan gum. The useful question is not, “Which powder looks most advanced?” It is, “What problem needs solving?”

Cocktail airs and velvets can make a drink feel more aromatic, more polished, and more memorable. They can also make it worse. That is the part many guides skip. A good foam topper should do more than look clever. It should fit the drink, stay stable long enough for service, and still drink well. The goal is not simply to trap air inside a liquid. The goal is to create the right texture for the right cocktail.