MEASURE 2 cups mashed strawberries and 1 cup each mashed raspberries and blueberries into large bowl; mix well.
BRING sugar, pectin and water to a boil in large saucepan, stirring constantly. Boil and stir 1 minute. Remove from heat.
ADD fruit mixture; stir 1 minute or until thoroughly mixed.
FILL clean plastic containers immediately to within 1/2 inch of tops; cover with lids. Let stand at room temperature for 24 hours until set. Store in refrigerator up to 3 weeks or freeze extra containers up to 1 year. Thaw in refrigerator before using.