Let’s Talk Cold Foam

Cold foam has moved from a niche specialty trend to a mainstream café menu item in a short space of time. If you have seen it on Starbucks menus or in independent coffee shops, you may be wondering what it actually is, how it differs from regular steamed milk, and how to make it consistently in a commercial environment. This guide covers everything you need to know.

What Is Cold Foam?

Cold foam is frothed skimmed milk that has been aerated without heat. Unlike steamed milk foam — which is produced by introducing steam into warm milk — cold foam is created at refrigerator temperature using a whisk, handheld frother, or dedicated cold foam blender. The result is a thick, silky, cloud-like layer that sits on top of cold drinks without immediately sinking.

Because it is not heated, cold foam holds its texture on iced drinks in a way that steamed foam cannot. It dissolves slowly as the customer drinks through it, gradually mixing into the coffee below and softening the flavour with each sip.

Why Skimmed Milk?

Cold foam requires skimmed milk — not semi-skimmed or whole. The reason is the fat content. Fat molecules in milk interfere with the protein structures that trap air during frothing. The more fat present, the harder it is to form a stable foam at cold temperatures. Skimmed milk has virtually no fat, which allows the proteins to bond more readily and hold the aerated structure needed for cold foam.

This is different from steamed milk, where fat actually contributes to a richer, creamier texture. For cold foam specifically, skimmed is the right choice every time.

How to Make Cold Foam

The process is straightforward once you have the right milk and equipment:

1. Start with cold skimmed milk — the milk should be straight from the fridge. Warmer milk will not foam as effectively and will collapse more quickly.
2. Pour into a suitable container — use a small jug, blending beaker, or cold foam blender cup. Do not fill more than halfway — the foam will roughly double in volume during frothing.
3. Froth until thick and stable — using a handheld frother, whisk, or cold foam blender, froth the milk for 20–30 seconds until it reaches a thick, spoonable consistency. It should hold its shape rather than flow freely.
4. Spoon onto the drink — pour your iced coffee or cold brew into a cup first, then spoon the cold foam over the top. Do not pour — it will break up. Use a spoon to layer it cleanly on the surface.
5. Add flavour if required — a small amount of coffee syrup (vanilla, caramel, or hazelnut work particularly well) can be blended into the milk before frothing to create a flavoured cold foam topping.

Best Drinks to Serve with Cold Foam

Cold foam works best on cold and iced drinks where the contrast between the creamy topping and the cold liquid below is part of the appeal. Popular applications include:

• Iced espresso — a double shot over ice with cold foam on top is one of the simplest and most popular combinations
• Cold brew coffee — the smooth, low-acidity flavour of cold brew pairs particularly well with a thick vanilla cold foam
• Iced lattes — add cold foam instead of a milk pour for a layered visual effect that works well for customer-facing service
• Frappes and blended drinks — cold foam as a topping adds a premium finish to blended coffee and milkshake-style drinks
• Flavoured iced drinks — caramel cold foam over an iced Americano, or brown sugar cold foam over iced espresso, are both high-performing menu items in independent coffee shops

Adding Cold Foam to Your Menu

From a commercial standpoint, cold foam is a low-cost addition that adds perceived value to existing menu items. The ingredients are minimal — skimmed milk and optionally a small measure of syrup — and the preparation takes under a minute. It gives customers a reason to order a premium iced drink rather than a standard one, and the visual appeal makes it well-suited to venues where customers photograph their drinks.

If you are adding cold foam options to your drinks menu, a handheld cold foam frother is the most practical tool for lower-volume sites. Higher-volume venues may benefit from a dedicated cold foam blender that produces consistent results faster.

We stock a full range of coffee syrups for flavouring cold foam, including vanilla, caramel, hazelnut, and seasonal options. Browse our barista accessories for frothing equipment, or contact us if you need advice on building out your cold drinks menu.