Finnish name: Kuohukerma (KWOH-hoo-KEHR-mah) /ˈkuo.hu.ˌker.mɑ/
Literal translation: “Foaming cream” or “rising cream”
English equivalent: Heavy whipping cream (pasteurized)
Fat content: 35%
Treatment: Pasteurized (extended shelf life)
Shelf life: ~25 days unopened, ~5 days opened
Ingredient list: KERMA — CREAM… That’s it

What It Is

Kuohukerma is Finland’s pasteurized heavy whipping cream, and the version most Americans would think of automatically when encountering the word “cream”. Valio calls it “kermojen aatelia,” the nobility of creams, which is the kind of marketing copy that might confuse you regarding fat percentages, but at least gets your attention for how it should be used.

At 35% fat and pasteurized rather than UHT-treated, kuohukerma occupies the sweet spot: rich enough to whip, stable enough to cook. It lives in your refrigerator (not your pantry), it expires in weeks (not months), and it handles heat well.

If vispikerma is the cold cream (shelf-stable, designed for whipped decorations and piped frosting), kuohukerma is the hot cream. It’s what you reach for when heat is involved.

Kuohukerma vs Vispikerma

These two get confused constantly, and the naming doesn’t help. Both are “whipping cream.” Both whip. The difference is in the processing and what that processing optimizes for.

Kuohukerma (35%, pasteurized) lives in the refrigerator, expires in ~25 days, handles heat beautifully, and whips faster, but the whipped cream collapses sooner — especially in warm rooms. It takes on a slight yellow color when whipped.

Vispikerma (38%, UHT) lives in the pantry until opened, expires in ~120 days, and has worse heat tolerance because UHT changes the proteins. It whips slower, but the whipped cream is more stable and holds longer. It gets lighter when whipped.

The vispikerma entry already covers the Finnish saying: “vispikerma esillä, kuohukerma piiloon” — vispikerma displayed, kuohukerma hidden. The logic is that you want your visible whipped decorations to hold their shape (vispikerma’s strength), while the cream that disappears into hot sauces doesn’t need that stability (kuohukerma’s territory).

What It Does

Kuohukerma is the cream for anything involving heat. The pasteurization process is gentler than UHT, which leaves the milk proteins more intact. This means they behave better when cooked. UHT cream can break or behave unpredictably in hot applications, while kuohukerma stays smooth.

The most classic kuohukerma use is kinuski, Finnish toffee/butterscotch. As Valio Aimo puts it, “moni on sitä mieltä, että ainoa oikea kerma esimerkiksi kinuskin keittämiseen on Valio kuohukerma” — many believe the only real cream for making kinuski is kuohukerma. The sugar and cream need to cook together for extended periods; you need a cream that won’t separate or seize.

It’s also the cream for cream sauces and reductions — anything where cream meets a hot pan and needs to reduce without breaking. For gratins and oven dishes like janssonin kiusaus (creamy potato and anchovy casserole) and valkosipulikermaperunat (garlic cream potatoes), anything involving cream baked at high heat. For soups like suppilovahverokeitto (chanterelle soup) and other cream-finished soups. And for custards and set desserts: crème brûlée, panna cotta, paahtovanukas (flan).

It also whips perfectly well for applications where long-term stability isn’t critical — kääretorttu (Swiss roll) filling, same-day desserts, anything that will be eaten before the whipped cream has time to deflate.

Why It Matters

Kuohukerma completes the cream hierarchy: ruokakerma at 10–22% is the cooking cream, too thin to whip, designed for sauces and soups. Kuohukerma at 35% is the hot cream, whippable but optimized for cooking. Vispikerma at 38% is the cold cream, shelf-stable, optimized for whipped decorations.

If a recipe calls for “kermaa” without specifying which, context tells you: hot application probably means kuohukerma or ruokakerma; cold/whipped application probably means vispikerma. Finnish recipes often don’t specify because home cooks know the hierarchy implicitly. Expats learn it the hard way.

Kitchen Notes

• Kinuski demands it. If you’re making Finnish toffee, don’t substitute. The extended cooking time requires cream that won’t break.
• The fridge cream. Kuohukerma needs refrigeration from purchase to use. Check the date! 25 days is the window, and it means it.
• Available variants: Standard, laktoositon (lactose-free/HYLA), and luomu (organic). The lactose-free version behaves identically for cooking purposes.
• For whipping, chill everything. Kuohukerma whips faster than vispikerma but is less stable once whipped. Cold bowl, cold beaters, work quickly, use promptly.
• In American recipes: Kuohukerma is closest to “heavy cream” or “heavy whipping cream” (36–40% fat, pasteurized). If a recipe specifies “whipping cream” vs “heavy cream,” the distinction usually matters less in Finnish dairy than in American — both kuohukerma and vispikerma will whip.
• Heat-stable, not heat-proof. Kuohukerma handles cooking better than vispikerma, but it’s not as bulletproof as ruokakerma for prolonged boiling. Kinuski works because the sugar stabilizes the cream. For sauces you plan to simmer hard without other stabilizers, reach for ruokakerma instead.