This Southern staple has a longer shelf life than you think.
), you may want to save the extra buttermilk for later.
How Long Does Buttermilk Last In The Fridge?

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Should You Freeze Buttermilk?
You absolutely can freeze buttermilk.
It would work well in ourGlazed Buttermilk Donut CakeorTriple-Chocolate Buttermilk Pound Cake.
Use fresh, refrigerated buttermilk for recipes like ourButtermilk Coleslaw.
Here are two popular methods for freezing buttermilk.
Stick the trays into the freezer.
Once the buttermilk is fully frozen, pop the cubes into a zipped plastic freezer bag.
Label the bag and date it so you’ll know when you should use or toss the frozen buttermilk.
Storage Containers
Use freezer-safe plastic or glass storage containers with a tightly sealed lid.
Fill each with 1/2 cup or 1 cup of buttermilk.
Label the containers with the amount and date, then stick them in the freezer.
But you’ll need to defrost the buttermilk for baked goods and otherbuttermilk recipes.
To defrost storage containers, it’s possible for you to place them in the refrigerator overnight.
Check the water frequently and replace the water if it gets too cold.
Ways To Use Thawed Buttermilk
We like to use thawed buttermilk in baking and cooking applications.
Try these with your buttermilk right from the freezer: