Wash berries; put in water to cover by placing hand on top of berries. Bring to a boil; simmer until there is good color and flavor (berries will begin to burst). Strain through cheese cloth. Mix Sure Jell with juice in large saucepan. Bring to boil; stir occasionally (this is a hard boil). At once, add sugar. Bring to rolling boil and boil hard 1 minute, stirring constantly. Remove from heat. Skim off foam. Use scalded jelly glasses.