Alright, I don't know if this stuff would be any good, but I do know that semen doesn't microwave well.
Once, when I was alone in a motel in Austin, TX that had both a freezer and a microwave, I got experimental.
I first froze a specimen in a plastic cup over night. The next day took what was a slushy-like specimen and put it into the microwave. i randomly set it for 2 minutes. After a few seconds it violently erupted into bubbles and evaporated leaving a burned residue on the sides of the cup.
Worth testing for yourself. Unless someone has it on Youtube already.