Sweet cream butter and cultured butter come from the same starting point: cream skimmed from milk. The path from cream to butter is also nearly identical: chill the cream, agitate it until the fat globules separate from the buttermilk, drain, knead, salt to taste. The single difference is whether the cream was fermented before churning. That one step changes the flavor profile, the baking behavior, and the price point of the finished butter dramatically. This guide walks through what each type is, how they behave in cooking and baking, and when to reach for each.
In the United States, sweet cream butter is the default. Roughly 95 percent of butter sold in US supermarkets is sweet cream. The cream is pasteurized, churned, and packaged without any fermentation step. The flavor is clean, sweet, and neutral. In Europe, the historical default is cultured butter, because before refrigeration, cream sat at cellar temperatures for a day or two before churning, and the wild bacteria in the cream naturally fermented it. The tangy flavor became the European standard before pasteurization changed the supply chain.
How cultured butter is made
Modern cultured butter uses controlled bacterial cultures (typically Lactococcus lactis and Leuconostoc strains, the same families used in buttermilk and creme fraiche) to ferment pasteurized cream for 12 to 24 hours at 70 to 75 degrees Fahrenheit. The bacteria convert lactose (milk sugar) into lactic acid, which lowers the pH from 6.7 (fresh cream) to about 4.5 (cultured cream). The acid changes the flavor in two ways: it produces lactic acid directly, which provides the tang, and it generates diacetyl, the compound responsible for the buttery flavor in butter itself (and in microwave popcorn). Cultured cream actually tastes more buttery than sweet cream because of the diacetyl.
After fermentation, the cream is chilled to about 40 degrees Fahrenheit and churned exactly like sweet cream butter. The buttermilk that drains off cultured butter is tangy and tasty, and was the source of traditional buttermilk before commercial buttermilk became cultured low-fat milk instead.
Flavor differences
Side by side, the differences are obvious. Spread cultured butter on toast and the first thing you notice is the tang, similar to a mild sour cream note. The flavor unfolds across the palate: butterfat, lactic tang, and a long finish with hints of nuttiness and toasted milk. Sweet cream butter is direct and bright: pure butterfat, slightly sweet, with a fast finish.
In cooking, the differences soften but do not disappear. Brown butter made from cultured butter has more depth and a hint of remaining tang. Brown butter from sweet cream is cleaner and nuttier. Both are excellent, just different.
In baking, the cultured butter flavor carries through finished products. A shortbread cookie made with cultured butter has a more complex butterfat flavor that lingers. A vanilla pound cake made with cultured butter has a richer background note. A delicate sugar cookie where the butter is supposed to be neutral can actually be worse with cultured butter because the tang competes with subtle flavorings.
Butterfat differences
This is where confusion enters the category. Most cultured butters sold in the US are also higher-butterfat than commodity sweet cream butter. The two attributes (cultured + high butterfat) often travel together because both signal a premium product, but they are independent.
USDA minimum for butter is 80 percent butterfat, 18 percent water, 2 percent milk solids. Commodity US butter (Land O’Lakes, store brand) typically hits the minimum. European-style butters (cultured or not) typically run 82 to 86 percent butterfat. The high-end cultured butters (Beurre d’Isigny, Echire, Vermont Creamery) typically run 84 to 86 percent.
The higher butterfat matters for baking and for finishing. Less water means less steam in baked goods, which changes the texture of cookies (less spread) and is critical for laminated doughs (less leaking). For finishing dishes (beurre blanc, brown butter sauce), the higher butterfat content makes a more stable emulsion.
When cultured butter is the right choice
Cultured butter is the right choice when:
The butter is meant to be tasted directly. A pat of butter on bread, a slice on a steak, a piece melted on a baked potato. The complex flavor is the point.
Baking shortbread, pound cake, or other recipes where butter is the dominant flavor. The depth of cultured butter carries through.
Pan-sauces and beurre blanc where the tang complements the acid in the wine or vinegar.
Compound butters where the butter base needs to compete with strong flavors (anchovy, garlic, herbs).
When sweet cream butter is the right choice
Sweet cream butter is the right choice when:
The butter is a neutral fat in the recipe. Roux, bechamel, hollandaise (where the egg flavor should dominate), buttercream frosting (where vanilla and sugar should dominate).
Delicate baking where vanilla, almond, or citrus should be the lead flavor. Sugar cookies, vanilla pound cake, lemon bars.
Sauteing where the butter is going to brown anyway. The flavor difference is partially masked by the Maillard reaction and the toasted milk solids.
Cost-conscious daily cooking where the price premium of cultured butter is hard to justify. Commodity sweet cream butter works fine for everyday use.
Cultured European-style butter brands available in the US
Vermont Creamery cultured butter: $9 to $12 per pound, 86 percent butterfat. The widely-available US cultured butter. Tangy and complex.
Kerrygold: Officially sweet cream butter, but the natural lactic activity in the supply chain (the cream sits in tankers for a day or more before churning) gives it a slight cultured flavor. Not technically cultured but tastes more cultured than commodity US butter.
Beurre d’Isigny: French AOP cultured butter, $11 to $14 per pound. The benchmark. Deeply cultured, 82 to 84 percent butterfat.
Echire: French AOP cultured butter, $14 to $20 per pound (when available). Considered the best by many professional pastry chefs. Lightly cultured with a clean finish.
Lurpak Cultured Slightly Salted: Danish, $7 to $10 per pound. Lightly cultured, 80 to 82 percent butterfat. A good entry-level cultured butter.
Home cultured butter
The simplest way to taste cultured butter without paying $14 per pound is to make it. Start with a quart of organic heavy cream and 2 tablespoons of plain whole-milk yogurt or live-culture buttermilk. Mix, cover loosely, leave at room temperature 70 to 75 degrees Fahrenheit for 18 to 24 hours. The cream will thicken slightly and develop a clear tang.
Chill the cultured cream to 40 degrees Fahrenheit (at least 4 hours, ideally overnight). Pour into a stand mixer with the whisk attachment. Run at medium-high speed for 5 to 8 minutes. The cream will first whip to soft peaks, then to stiff peaks, then break (this is the moment butter is forming, you will see yellow flecks). Continue another 1 to 2 minutes until the butter separates clearly from the buttermilk and pulls together in a mass.
Drain off the buttermilk (save it, it is excellent). Knead the butter under cold running water until the water runs clear. Add salt to taste (about 1 percent by weight). Store in the fridge for 2 weeks or freeze for 3 months.
The yield from a quart of cream is about 12 to 14 ounces of butter and 14 to 18 ounces of cultured buttermilk. The total cost is roughly $6 to $9 in 2026 for organic cream, which makes the per-pound cost of homemade cultured butter $7 to $11, comparable to mid-range commercial cultured butter.
See our methodology page for the dairy testing framework, and the pasture-raised butter brands guide for the feeding side of the category.
Frequently asked questions
What does cultured butter taste like compared to sweet cream?+
Cultured butter has a noticeable tang, similar to a mild creme fraiche or yogurt note, with a complex finish that lingers. Sweet cream butter is cleaner, sweeter, and more neutral, with a quick finish. The tang comes from lactic acid produced by bacterial cultures during fermentation of the cream before churning. Once you taste them side by side, the difference is unmistakable.
Is cultured butter the same as European butter?+
Mostly yes, but not always. European butters (French, German, Danish) are traditionally cultured, which is why people associate European butter with the tangy flavor. But European-style butters in the US are sometimes high-butterfat sweet cream butters without culture (Plugra is a good example). Read the label. Cultured butter will say cultured cream or contain a bacterial culture in the ingredients.
Can I bake with cultured butter instead of sweet cream?+
Yes for most applications, with two caveats. Cultured butter has a slightly lower pH than sweet cream butter, which can affect baking soda activation in delicate recipes. The flavor of cultured butter carries through baked goods, which is wonderful in shortbread and pound cake but can compete with subtle flavorings like vanilla bean or citrus zest. For chocolate-forward baking, the slight tang of cultured butter actually enhances chocolate depth.
Is cultured butter better for laminated doughs?+
European-style cultured butters with high butterfat (Beurre d'Isigny, Echire) are excellent for laminated doughs because of the butterfat content, not the culture itself. The culture flavor adds complexity to the finished croissant. The high butterfat (82 to 86 percent vs 80 percent USDA minimum) is the structural advantage: less water in the butter means cleaner lamination and less risk of butter leaking out during baking.
Can I make cultured butter at home?+
Yes, easily. Mix 1 quart heavy cream with 2 tablespoons live-culture buttermilk or plain yogurt. Cover loosely and leave at room temperature for 12 to 24 hours until the cream tastes tangy and looks slightly thickened. Refrigerate until cold (this is essential for churning). Whip in a stand mixer or food processor for 5 to 10 minutes until the butter separates from the buttermilk. Drain, rinse the butter with cold water, knead out the remaining liquid, and salt to taste. Yield is about 12 to 14 ounces of butter and 14 to 18 ounces of buttermilk from 1 quart of cream.
Jamie Rodriguez
Jamie Rodriguez writes for The Tested Hub.