Experts from the German Federal Institute for Risk Assessment (BfR) said several instructions must be followed when brewing tea.
In particular, it is recommended to pour boiling water over the tea leaves and steep the drink for about five minutes.
"This will allow you to protect yourself from bacteria, yeast or mold, which are sometimes found even in expensive teas," Rusbalt said.
In addition, experts warn that if the drink is steeped for several hours, then there will be no benefit to the body.
Source: Sputnik