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preserve strawberry jam

Strawberry Jam Preserves

dani
Preserve some delicious strawberry jam to enjoy all year long!
Prep Time 20 minutes
Cook Time 15 minutes
Course Dessert
Cuisine American
Servings 7 half pints
Calories 86 kcal

Ingredients
  

  • 8 cups strawberries
  • 1 packet powdered pectin
  • 7 cups sugar
  • 1 tbsp butter (optional)

Instructions
 

  • Fill waterbath canner with enough water to cover jars completely by 2 inches. Place on stove and heat the water.
  • Remove tops of berries and crush with a potato masher in a large stainless stock pot.
  • Add 1 packet of powdered pectin, 1 tbsp butter and combine.
  • Heat mixture until it comes to a rolling boil. Stir continuously.
  • Add sugar all at once and stir to combine.
  • Continue to heat until mixture returns to a rolling boil.
  • Boil for 1 minute then turn off the heat.
  • Remove any foam on top of mixture with spoon and quickly ladle into jars.
  • Wipe rim of jars with a clean rag dipped into white vinegar.
  • Apply lid and ring to finger tightness only.
  • Place jars into canner and process for 15 minutes after water comes to a boil.
  • Remove lid of canner and allow to rest for 5 minutes before removing jars.
  • Place jars on a towel lined surface and allow to cool for 24 hours.
  • Check jars for proper seal. Remove rings and label your jars.

Notes

Adding 1 tbsp of butter will help prevent foam from forming. It is not necessary for the recipe, and you may still see foam form on top.
Keyword strawberry jam, strawberry preserves