Mix 3/4 c sugar and pectin together. Stir into blueberries, lemon rind, water, and Sambuca in a heavy saucepan. Cook over high heat, stirring constantly, until mixture comes to a hard boil. Stir in remaining sugar. Bring to a rolling boil, still stirring constantly. Boil for 1 minute. Remove from heat. Skim off foam with metal spoon. Place 10 coffee beans in each jar. Immediately pour jam into hot sterilized jars and vacuum seal. Makes 5 1/2 pint jars.