There is a natural anti fungal I can use that is safe and I will try it. Cinnamon is recommended by some frog keepers that use homemade fruit fly culture media. I plan on trying other recipes if this one does not work. My main concern with potato flakes is they do not have vitamins that are added to the potato powder in the commercial mixes. Real fruit has those vitamins. I am told that if I start my mixes hot and add yeast and flies after they cool I will have a better chance of killing the unwanted mold and bacteria.

I'm sorry if I was getting Harpy earlier. I am so use to people not taking my allergy seriously when it is as ****ing serious as a heart attack. People say "Oh it can't be that bad." "You must be making this **** up." or my favorite one from a restaurant manager who was faking he did not speak English when I asked him to wipe down the counter before making my sandwich. "Oh' I wipe down counter this morning." At that point is was just past lunch rush and I saw all sorts of unsafe sauces and dressings smeared on the counter that I know from experience will seep through paper and make me far too sick to be worth my time. I walked out and refused to go to that chain of restaurants for about 5 years after that because I don't deserve to be treated like that. One could say it is a very touchy subject for me.