Freezing Berries in Mason Jars

We have a small number of raspberry bushes on our property and right now they are producing decent amounts of berries every day-maybe 2 quarts..not that there aren’t others to be picked, they are just not perfectly ripe yet. While it’s more than we would eat in a day, we like to freeze them and save them for smoothies, baking or jam making later in the year.

We are trying to use less plastic, so Mason Jars it is. I love everything Mason Jar.

Can you freeze things in Mason Jars? Absolutely. On Monday we froze 16 pints  of sweet corn in Mason Jars.  The catch is to only use wide mouthed pint jars made for canning or freezing. If you look closely at the top of the jar you will see a “freezer fill line” at the top of the jar. This is also a great way to use up already used seals, since you don’t need to process these in a water bath or pressure cooker.

To Do:

  1. After picking and washing berries let them air dry.
  2. Place them in a single layer on a cookie sheet (adding parchment or freezer paper under the berries will help when removing them later)
  3. Place them in the freezer for about an hour, more won’t hurt.
  4. When they are frozen, remove them from the freezer.
  5. The berries can now be placed individually in the freezer jars.
  6. Put the lid and ring on them and label.

They are now ready for individual use, rather than having one large clump of berries to fight with when you need them…we’ve all been there.




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