Before you buy a frother: can they already froth milk?
Two things worth checking, because either one changes the answer. If their espresso machine has a steam wand, they do not need any of these — a wand both heats and textures with the same steam, so buying a frother alongside one is the most common duplicate gift in this category. If they are machine-shopping, best espresso machines with a milk frother sorts machines by how much of the milk work they do for you, which is the spec that decides whether someone keeps making lattes.
And if they want foam tonight, before any gift arrives, a jar and a microwave genuinely work. How to froth milk without a frother covers four no-equipment methods and is honest about which one beats a cheap electric frother — the French press plunger, as it turns out. Read it first if you are not sure a frother is the right present at all.
Which drink are they frothing for?
Worth settling before you buy, because it changes which frother suits. A cappuccino needs milk stretched much further than a latte does — thick, airy foam that holds its shape rather than glossy pourable microfoam — and the automatic frothers here differ in how much air they can put in. How to make a cappuccino explains the distinction and what each drink wants from the milk.
Two more drinks worth checking against the picks above. If they drink iced coffee, the froth they want is cold, and a cold setting is a specification you have to look for rather than assume — how to make cold foam explains why a steam wand cannot make it and a cheap battery whisk can. And if the frother is going to be part of a larger present, gifts for latte lovers puts it next to the cups, the pitcher and the machines that texture milk themselves, sorted by budget.