Nestle Nespresso Aeroccino3 3594 Black Milk Frother

Why it's worth it

The Aeroccino3 makes hot foam, hot milk, or cold froth at the press of one button, and it works alongside nearly any Nespresso machine. It's quiet, it shuts off on its own, and the nonstick jug rinses clean in seconds.

Buy this before you buy a machine with a built-in frother. It costs a fraction of the upgrade, it works with any Nespresso you already own or later replace, and if it fails you replace just the frother rather than sending the whole machine in. That flexibility is the real case for it.

Three modes cover almost everything: dense hot foam for cappuccino, hot milk for a flat white, and cold froth for iced drinks. You fill to a line, press once, and walk away — it stops itself. Owners consistently note how quiet it is compared with a steam wand, which matters if you're making coffee before anyone else is up.

From our review of 8 nespresso machines and accessories

What we like

• +Buy this before you buy a machine with a built-in frother
• +Three modes cover almost everything: dense hot foam for cappuccino, hot milk for a flat white, and cold froth for iced drinks
• +It's not just for coffee, either
• +Note that this is the Aeroccino3

What to know

• –It's fussy about milk
• –The heating element is the part that fails, and some owners see it quit within the first year or two