i used to brew alot, but had one mistake and i got annoyed and kinda stopped brewing after that.

i would measure out the sugar for the secondary when i was preparing the first, and would put it in a little zip lock.
my dad came by and gave wanted to give me this new cleaner that just came out...
he showed up with a small zip lock bag of oxy-clean (this is how long ago this was) and i put it in the pantry not thinking about it.

comes time to do the secondary, and i grabbed the little bag full of white stuff..
yes it was the oxy-clean

but i love beer, alot.