Bring boiling water canner half full with water, to a simmer.
Pour boiling water over flat lids in a sausepan off the heat. Let stand in hot water until ready to use. Drain well before using. Prepare fruit. Crush one layer at a time.Using a potato masher. ( I used Strawberries , red raspberries & blueberries) You should get 8 cups crushed. .
Measure exact amount of sugar in separate bowl. Set aside. Stir in 1 box pectin into fruit in a sausepan. Bring mixture to a full boil. ( A boil that does not Stop when stirred) .On high heat. Stirring constantly. Stir in sugar quickly. Return to a full boil.Boil exactly 1 minute. Remove from heat. Skim off any foam.
Ladel quickly into prepares jars to with 1/8" of tops.Wipe jar rims & threads. Cover with 2 piece lids. Screw bands tightly. Place jars into canner. Water must cover 1 -2 ". Add boiling water if needed. Cover bring water to a gentle boil. Process jams 10 minutes.. Remove jars to cool. Let stand 24 hours at room temperature. Check seals by pressing in the middle of lid with finger. ( If the lid springs back it is not sealed & refrigeration is necessary).. I got 12 half pint jelly jars. ..
