FOOD STORAGE — HOW LONG CAN YOU KEEP...

BUTTERMILK, FRESH, FLUID, COMMERCIALLY PACKAGED — UNOPENED OR OPENED

Refrigerator

2 weeks

Freezer

3 months

Tips

Keep refrigerated.
Freeze in airtight container and leave at least 1/2 inch headspace at the top, as buttermilk will expand when frozen.
Frozen buttermilk will have a slightly different taste and texture when thawed and is best used in cooked dishes.
Freezer time shown is for best quality only— foods kept constantly frozen at 0° F will keep safe indefinitely.

Sources: For details about data sources used for food storage information, please click here.