I've been buying 4 lb of red seedless grapes, rinsing 3 pounds and removing them from the stems, and putting them in the freezer in a zipper storage gallon bag. I attack them often.
I learned that from my grandparents. They had Concord grapevines and grandma would put some in the freezer for the grandkids. We just had to watch out for the seeds. Now I freeze seedless ones.
