Nov 22, 2021

Please Stop Eating The "Clean" Bit Of Moldy Bread, It's Not Safe

Food waste is a terrible thing, but busy lives make it easy to lose track of what’s expiring first in the kitchen cupboard. There are some foods you can rely on to be quite transparent with their state of decay, but some can be much more inconspicuous. If you’ve ever cut or scraped off the green stuff growing on a piece of bread, you may have fallen victim to a sneakier breed of decay.

Most of the mold that affects food is a type of fungus, arguably one of the most secretive kingdoms on Earth that’s separated from animals and plants as eukaryotes. Their fruiting bodies sit loud and proud atop whatever soil they have fixed themselves to but underneath rages a war of fungus and host that stretches beyond the visible mold we can see on the bread’s surface. Slime mold, an organism that can aggregate to form a colony and move around the environment, isn’t included in this group as they are actually a type of amoeba.

While it’s true you could get lucky and have a benign species of mold on your bread, spotting the difference between good and bad mold is almost impossible and the threat applies to any food item that’s been contaminated. A report on moldy bread from Business Insider details the case of an elderly couple who were taken to hospital with severe muscle tremors after eating some moldy canned soup. The perpetrator was Penicillium crustosum (yes, like the antibiotic), which is known to release mycotoxins, a type of poison.

“The effects of some food-borne mycotoxins are acute with symptoms of severe illness appearing quickly after consumption of food products contaminated with mycotoxins,” says the World Health Organization (WHO) on its website. “Other mycotoxins occurring in food have been linked to long-term effects on health, including the induction of cancers and immune deficiency. Of the several hundred mycotoxins identified so far, about a dozen have gained the most attention due to 

their severe  effects on human health and their occurrences in food.”

The allure of a good sandwich is undeniable, but it’s not worth risking your health. If you’re worried about food waste, you can always freeze fresh bread to keep it for longer. Just make sure you get to it before the mold does.

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