How to Can Blueberry Jam
Rich blueberry jam with fresh blueberries and pectin.
The Short Answer
Blueberry jam is water bath canned. Process half-pints and pints for 10 minutes.
Canning Method at a Glance
Source: USDA NCHFP | Last verified: March 30, 2026
Water Bath Canning Blueberry Jam
Follow pectin recipe exactly.
Headspace: 0.25 inches
Step-by-Step: Canning Blueberry Jam
- Wash and crush blueberries.
- Follow pectin recipe.
- Combine with pectin. Boil. Add sugar. Boil 1 minute.
- Skim foam. Ladle into hot jars. Wipe rims, apply lids.
Crush one layer at a time with a potato masher. Gives a mix of crushed and whole berries for the best texture.
Safety Notes
Important: High-acid and safe for water bath canning.
The Bottom Line
Blueberry Jam can be safely canned in a boiling water bath. Always use tested recipes from the USDA, Ball, or university extension programs. Follow processing times exactly, and adjust for your altitude if you live above 1,000 feet. When in doubt about any canning procedure, consult the USDA National Center for Home Food Preservation at nchfp.uga.edu.
Frequently Asked Questions
Yes. Thaw completely and measure after thawing. Frozen berries break down more easily, which can help with the set.