Made a Summer ale and added 5 lb. of raspberry's to the secondary. After a week at 67 degrees in the secondary, I rack to a third carboy. Tasted the result and it is quite nice with a beautiful raspberry flavor up front. The summer ale blends in the middle. However, there is bitterness (I assume from the seeds) that finishes it off. Not really what I want. Is there a way to reduce the bitterness or sweeten it up to mask as it conditions. This is my first try at a fruit ale. Any suggestions are appreciated.