Is food safe to eat with grey or black residue on it?
I noticed that every time I leave my food over night in my stainless steel caserole dish, there is this grey/black residue on it.
I ate some of the food but after I saw this residue, I got scared the food is poisoned.
It it?
Best Answer
Most likely the casserole dish is not stainless steel. If only because stainless steel is designed specifically not to chemically interact with the food, and will never discolor it.
That said, if it was my dish I'd get rid of it, or at least never let food sit in it longer than strictly necessary for cooking. Who know what you're ingesting, and most metals are toxic.
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What is the black stuff on pans?
They are most likely carbon deposits. This happens due to overheating of fats and oils. Using an oil with a low smoke point will carbonize at high temperatures and cause residue from the pores of your pan to rub off onto your food. While unappealing, they won't hurt you in such a small amount.What is the black stuff coming off of stainless steel?
The black residue is a very small amount of chromium rust which when it forms a thin coating on stainless steel gives it the brilliant shine. The same effect can be seen much more clearly when cleaning a stainless steel sink using the various cleaners made for the purpose.What is the gray residue on stainless steel?
It's probably cardboard dust from the packaging. This happens to my pots too sometimes, though mostly older ones. @GdD Doesn't look cardboard at all, the residue has a dark grey metalic colour to it.Why does cast iron make food black?
Cause 1: Cast Iron Not Seasoned Properly Finally, it is oiled and heated in the kiln for seasoning. Unseasoned or poorly seasoned cast iron cookware has carbon residue on its surface. When you cook food in such cookware, the carbon residue may transfer to the food and impart a black colour to it.7 Foods That Cause Grey Hair
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