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Straight Jar

Freezing Mason Jars - A How-To Guide

When freezing food or drink in Mason Jars, only use jars with straight edges for freezing, not the ones that are rounded or have "shoulders" at the top.
Never expose a Mason Jar to anything that will dramatically change its current temperature, like running hot water over a cold Mason Jar or placing a hot Mason Jar in the freezer.
Chilling Time 1 hour 30 minutes
Total Time 1 hour 30 minutes

Equipment

  • A freezer-safe Mason Jar with straight edges
  • Freezer labels
  • A permanent marker
  • A ladle or spoon
  • A wide-mouth funnel
  • Large, sealable bag (1 per jar)

Instructions
 

  • Whatever you're putting into the Mason Jar needs to be cooled first. Major temperature changes to glass will crack it. Let food cool down before putting it in the jar.
  • Big changes in temperature will crack the glass, so chill the Mason Jar in the fridge for 30 minutes while the food is cooling.
  • While chilling the Mason Jar, pop a wide mouth funnel onto your jar. Ladle the food or liquid into the Mason Jar but don't overfill it—this is the main reason why jars shatter in the freezer. Leave 1 to 2 inches of space at the top of the jar (more is better.)
  • Put the cap back on the jar, but don't screw it tightly.
  • Write today's date and what's in the jar on a label and stick it to the jar lid. These labels are perfect for jars, and they don't leave a sticky mess.
  • Put the Mason Jar in the fridge for at least 1 hour before putting it in the freezer. Remember, big changes in temperature will crack the glass—going from room temperature to freezing can cause some glass to crack.
  • Put the jar in a bag (or another container) before putting it in the freezer if it does shatter. Accidents do happen. Use one bag per jar.
  • Place the Mason Jar in the freezer. If you're storing several jars, keep a little space between them. Avoid placing them directly side-by-side.
  • After the jar has been in the freezer overnight, you can take it out to tighten the cap. If you forget to do this, it's no big deal.
Keyword are mason jars freezer safe, freezing mason jars