Why don’t disposable paper bowls rot after soaking?

Disposable paper bowls usually use special production processes and materials to make them have a certain degree of water resistance. During the production process, some waterproofing treatments or coatings may be added to enhance the paper bowl's water resistance. These treatments make the paper bowl less likely to break down or soften after contact with water, thus maintaining structural stability. Additionally, the pulp may contain additives, such as resins or chemicals, to enhance the paper's strength and water resistance.

However, while disposable paper bowls are less likely to rot, they are still biodegradable because they are primarily made from paper pulp. Under the right conditions, such as an environment with the right humidity and temperature, paper bowls will eventually break down and degrade into organic matter in the environment. So while they're less likely to rot, they're still a relatively environmentally friendly option that's easier to break down and dispose of than plastic.