Pénzformák

Pénzformák, often translated as "money molds" or "money fungi," is a colloquial term used in Hungary to describe a type of fungal growth that can appear on money, particularly banknotes. This phenomenon is not exclusive to Hungary and can occur on currency in various parts of the world under certain conditions.

The growth of these fungi is typically attributed to factors such as humidity, poor storage conditions, and the presence of organic material on the banknotes themselves. Banknotes are often handled by many people and can accumulate dirt, oils, and other residues, creating a substrate upon which fungi can thrive. High humidity levels are a significant contributing factor, as they provide the moisture necessary for fungal spores to germinate and grow.

While the term "pénzformák" might sound alarming, the fungi commonly found on money are generally not considered harmful to humans. They are often saprophytic fungi, meaning they feed on dead organic matter. However, for aesthetic reasons and to maintain hygiene, it is advisable to keep banknotes clean and dry. If significant fungal growth is observed on currency, it is best to avoid using it and consider replacing it with a cleaner bill. Banks typically have procedures for handling and replacing damaged or soiled currency. The presence of these fungi is more of a biological curiosity and an indicator of storage conditions rather than a widespread threat.