The good news is I've started making my oven. 42" frost line depth here in northern Illinois. So... had some old firebricks around, but they were kind of dirty, and my wife wanted me to wash them (as well as some of the cruddier ones I built with). So, after cleaning the bricks in a water/Simple Green cleaner solution (all of the building materials were dug out of the yard, so pretty filthy, hence the cleaning solution rather than just water), I read the back of the cleaning bottle. NOT FOR INTERNAL USE, and other such warnings. My question, will this stuff stay in the firebrick forever? Will it rinse out with regular water? Will it "burn" out whan I fire the oven? It was a probably ahalf cup of cleaner to a gallon and half of water, so it was pretty diluted. Will I kill everyone who eats bread out of this oven if I use these bricks?
So far, I've managed to scrounge and not purchaseANY materials. Unfortunately, I don't have enough firebricks if I don't use these, and would have to purchase some (which I really don't want to do.
Thanks for any input/suggestions.