Last updated: June 10, 2026.
Yes, you can freeze buttermilk, especially for baking and cooking. The texture often separates after thawing, so it is better for pancakes, biscuits, cakes, marinades, and sauces than for drinking. Freeze it while it is fresh and cold, not after it already seems questionable.
Best Ways To Freeze Buttermilk
| Portion | Best use | Tip |
|---|---|---|
| 1 cup portions | Pancakes, cakes, biscuits | Label the amount clearly |
| 1/2 cup portions | Small baking recipes | Leave space for expansion |
| Ice cube tray portions | Marinades and sauces | Move frozen cubes to a freezer bag |
| Original carton | Usually not ideal | Cartons can split as liquid expands |
| Questionable buttermilk | Do not freeze | Discard instead |
How To Freeze Buttermilk
- Shake or stir the buttermilk while it still smells normal.
- Pour it into freezer-safe containers in recipe-size portions.
- Leave headspace because liquid expands as it freezes.
- Label the date and amount.
- Freeze promptly and keep the container sealed.
How To Thaw Frozen Buttermilk
Thaw frozen buttermilk in the refrigerator. Once thawed, shake or whisk it because separation is common. Use it soon in cooked or baked recipes, and do not leave it on the counter to thaw.
When To Throw Buttermilk Away
- Mold or unusual colored growth
- Swollen, leaking, or damaged carton
- Rotten, yeasty, or unusually harsh odor
- Large clumps or texture that is not normal for that product
- Unknown time above refrigerator temperature
- Buttermilk that was already past trust before freezing
FAQ
Can frozen buttermilk be used for pancakes?
Yes. Thawed buttermilk works well in pancakes after stirring or shaking, even if the texture separated in the freezer.
How do you thaw frozen buttermilk?
Thaw frozen buttermilk in the refrigerator, then shake or whisk it before using. Do not thaw it on the counter.
Can you freeze buttermilk in the carton?
It is better to use freezer-safe containers with extra headspace. The original carton can leak or split as the buttermilk expands.
Can freezing save expired buttermilk?
No. Freezing does not fix buttermilk that is already spoiled, warm too long, moldy, or questionable. Freeze only fresh buttermilk.