Step-by-Step Instructions for Blueberry Raspberry Freezer Jam Clean your jars and lids with hot soapy water. Rinse clean. Rinse the berries and remove any stems or leaves. Zest lemon to get 1 Tbsp ...

Add blueberries, peaches, lemon zest, juice. Stir 3 minutes. Ladle jam into plastic or glass freezer jars, leaving ½-inch headspace. Apply lids tightly. Let jam stand at room temperature until ...