How to Make Cold Foam at Home

How to Make Cold Foam at Home

What Is Cold Foam?

Cold foam is the silky, cloud-like topping you see on all the prettiest iced coffees and cold brews. It seems complicated but it's really just frothed milk—served cold, not steamed—giving your drink a creamy finish without the heaviness of whipped cream. If you're working on your coffee game at home, mastering cold foam is one of the best ways to feel fancy and professional!

Why Make Cold Foam at Home?

  • Save Money: Skip the $7 coffee shop runs.
  • Customize Your Flavors: Use your fave syrups (it's okay if they aren't ours, but if they aren't ours, why aren't they ours??).
  • Impress Yourself (and Your Friends): Instagram-worthy drinks that you can show off, or just enjoy without telling anyone in the comfort of your own home.

Ingredients You’ll Need for DIY Cold Foam

  • Milk: Skim makes the fluffiest foam, but whole, oat, or almond milk are all fair game.
  • Sweetener: Sugar, honey, or—not to be too on the nose—Full Moon syrups for flavor and sweetness in one.
  • Frothing Tool: Electric milk frother, handheld frother, or a mason jar with a tight lid (this is the most annoying method though. Just get the frother).

Step-by-Step: How to Make Cold Foam at Home

Step 1: Pour Your Milk

Add about ¼ cup of cold milk to your frother or jar (if you're insisting on the jar method).

Step 2: Add Flavor

Mix in 1–2 teaspoons of your favorite syrup. Lavender for a floral vibe? Cardamom Vanilla for cozy feels? Pumpkin Spice if you’re feeling autumnal? (No judgment, PSL season is a year-round mood here.)

Step 3: Froth It Up

  • With a frother: Whiz for 20–30 seconds until thick and foamy. Alternate holding the frother at the bottom of the milk and closer to the top.
  • With a jar: Screw on the lid and shake it like you mean it—bonus points for getting your workout in (but really, why did you choose the hard way?).

Step 4: Top Your Drink

Spoon the cold foam over your iced coffee, cold brew, or even a matcha latte.

Step 5: Sip and Savor

Snap a pic, take a sip, and pat yourself on the back. You’re officially fancy.

Pro Tips for the Best Homemade Cold Foam

  • Use super cold milk for maximum froth.
  • Try different syrups for seasonal flavors—Strawberry Sage in summer, Pumpkin Spice in fall.
  • Sprinkle with cinnamon, cocoa, or nutmeg for an extra fancy finish.

Cold Foam Flavor Ideas with Full Moon Syrups

Classic & Cozy

  • Cardamom + Vanilla Cold Foam: Sweet, spicy, and perfect on cold brew.

Floral & Fun

  • Lavender Cold Foam: Pairs beautifully with iced lattes, shaken espressos, or london fogs.

Fruity & Fresh

  • Strawberry Sage Cold Foam: A game-changer on matcha. (Throw some syrup in your matcha too!)

Why Use Full Moon Syrups in Your Cold Foam?

Because you get real, small-batch flavor—no weird chemicals, just wholesome ingredients and organic cane sugar. Plus, every bottle supports a tiny business that runs on wild ideas and a slightly unhinged idea of what's possible.

Ready to Try It?

Grab a bottle of Full Moon syrup (or three), mix up your own cold foam, and let me know your favorite combos! Tag us on Instagram so I can see your creations—and maybe borrow your ideas for my next coffee break. :)
Have questions? Want a custom flavor suggestion? Shoot me an email. I love talking all things coffee (and syrup).
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