Hot Foam vs Cold Foam: How to Make Both with a Milk Frother

What Is the Difference Between Hot and Cold Foam?

Hot foam is warm milk frothed at 60-65 degrees Celsius. It is creamy, soft, and blends into the drink. Cold foam is cold milk frothed straight from the fridge. It is stiff, thick, and sits on top of the drink like whipped cream. Both use the same frother — the temperature of the milk is the only difference.

You have probably seen cold foam on Starbucks iced coffees. That thick white layer that floats on top? You can make that at home in 30 seconds with any handheld frother. Hot foam goes inside the drink. Cold foam goes on top. This guide shows you how to make both.

How Do You Make Hot Foam?

1. Heat milk to 60-65 degrees. Microwave for 45-60 seconds or warm on the stove. Do not boil.
2. Use the spring coil whisk. Dip it just below the surface.
3. Froth for 15-20 seconds. Move up and down gently. The foam should look smooth and creamy.
4. Pour over your coffee. The foam blends into the drink and a thin layer floats on top.

Hot foam is what you see on lattes, cappuccinos, and frothy chai. It is soft and velvety.

How Do You Make Cold Foam?

1. Use cold milk straight from the fridge. Do not heat it at all. Colder milk makes stiffer foam.
2. Use whole milk or add 1 tsp cream. Fat helps cold foam hold its shape longer.
3. Set frother to high speed. Cold milk needs more energy to foam than warm milk.
4. Froth for 30-45 seconds. Longer than hot foam. You will see stiff peaks forming.
5. Spoon the foam on top of your iced drink. It sits there like a thick cloud. Do not stir it in.

Cold foam vanilla twist: Add 1 tsp vanilla extract and 1 tsp sugar to the cold milk before frothing. This makes the sweet vanilla cold foam you get at cafes for Rs 350 — at home for Rs 20.

Which Drinks Use Which Foam?

Which Frother Works for Both?

Any handheld frother with 2-3 speed settings makes both hot and cold foam. Use low-medium speed for hot foam and high speed for cold foam. The rechargeable models at Rs 699 have 3 speeds, which gives you the best control for both foam types.

The electric 4-in-1 machine at Rs 4,199 has dedicated hot foam and cold foam modes. Press a button and it handles the rest. But for most people, a handheld frother with speed control does the job at one-sixth the price.

For a complete frothing guide, read how to use a milk frother. For milk choice, see which milk froths best.

InstaCuppa 4-in-1 Milk Frother

Hot froth, cold froth, hot milk & warm milk. Makes cafe-style lattes and cappuccinos.

Rs 4,199

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