Add the sugar (1), Natur Alg and Natur Agrum to the fruit puree(s). Bring to the boil once before adding the sugar (2) and glucose syrup. Boil for 1 minute. Add the lemon puree and blend with a hand blender. Pour into the frame. Leave to cool to room temperature. Cut out and leave to dry on the wire rack. After 48 hours, roll in sugar and pack. Store in a dry place.