scubaddic
Assistant Cook
I recently came across a couple of very old metal canners that were going to be thrown out. They had not been used for anything other than canning. I salvaged a couple to use as pet waterers for my animals as the size is perfect for our 3 dogs. However, after a couple of months, I have started noticing some hard white spots growing on the inside and in trying to get them removed, the only way is to scrape them off with a knife. I have tried soaking the pots in bleach and vinegar to no avail and I do wash them regularly. We have fairly hard water where we live. Is this something I should be concerned about - is it just hard water buildup, or could it be something else given that the canner may have been made out of something different back in the olden days? Any advice would be greatly appreciated.