Although we often read on the internet that molds are cancerous, in reality this is not always the case. There are cheeses such as gorgonzola and all the blue cheeses, or fruit and many other foods which, although spoiled, do not constitute a danger to health. There are fungi of the aspergilli family that develop toxins: aflatoxins, which can develop in foods such as cereals, spices, nuts and legumes.
This is the mold that, if present on some foods, could cause liver cancer
By storing these foods at temperatures between 25 and 32 degrees and with a humidity of 80%, there is a high risk of developing this type of mold. Aflatoxins, especially B1, are genotoxic, which means they cause damage to DNA and the production of proteins in the cell, causing liver cancer.
The International Agency for Research on Cancer (IARC) of Lyon has been studying the carcinogenic effect of many substances for about 50 years, including aflatoxins, which he classified in group 1, that is, “substances that are certainly carcinogenic for humans”.
How to tell if the food has been contaminated?
As reported by the AIRC website, this is the mold that, if present on some foods, could cause liver cancer. But unfortunately it is not visible and has no flavor. Even if we notice the presence of mold on the food, it is not certain that it is aflatoxins. The European Union has put in place many regulations to reduce the presence of this fungus in food. The authorities carry out various checks on the products that are exported and imported. Especially on those coming from countries where aflatoxin contamination is more likely.
As for home prevention, it is important not to eat cereal products if you notice traces of mold. Another useful tip is to respect the expiration dates of dried fruit, nuts and spices.