I don't know if I believe it but I'm tempted to try it out. Maybe one night or on some weekend very soon, I'll try my own little experiment and I'll write a report and let you all know.
I wonder if it matters which type of Onions, Apples and Potatoes I use, and obviously I don't mean ones like Pickled Onions, Toffee Apples and Potato Chips (Crisps), I mean as in: Red or White Onions? Braeburn or Pink Ladies? King Edwards or White Potatoes?
Anyway, here's to science and still performing experiments years after I left school...I always did appreciate Chemistry.