Glad you mentioned only using the full fat milk for the strawberry ice cream too... nobody wants to bite into a rock hard ice cream sandwich and break a tooth, LOL! (feastingonfruit.com)
But grapefruit behaved differently once frozen, it turned into hard ice. (golubkakitchen.com)
Enjoy immediately for soft serve ice cream, or if you prefer hard ice cream, freeze for an hour and then scoop and enjoy. (3wholepeasinourgfpod.com)