Foam and a rainbow skin on the surface of tea quite often appear when brewing the popular drink. Few people know why this actually happens, but some people pour it out of fear for their health.
Fortunately, the residue that at first glance resembles a spilled gasoline stain is not dangerous. It’s a normal chemical reaction. Natural and harmless to the body, so next time you can drink it without any worries.
You may be interested in:
The tea may become foamy because there are saponins in the leaves (these are natural compounds secreted by plants – lowering cholesterol, having anti-inflammatory and antibacterial properties).
They usually foam in water like soap. This phenomenon also often appears when the infusion is dynamically poured with boiling water. Where does the rainbow sheepskin coat on tea come from? This, in turn, is the result of a reaction present in tea polyphenols z calcium carbonate in water (especially hard water).
Read also:
Rainbow sheepskin coat is not dangerous to health. However, if you don’t want to see them, you can use some clever tricks. One way to avoid its formation is to filter the water to reduce the calcium carbonate content. Next, brewing at a slightly lower temperature.
You can also add lemon juice to the tea to stop it from forming on the surface of the infusion. Not without reason people who drink tea with the popular citrus fruit rarely have the opportunity to see this colorful phenomenon.
Are you irritated by froth in your tea? Pay attention to the way the infusion is poured. Next time, try not to apply water from a great height and make chaotic movements.
Lower your hand a little and stay calm. Try to pour the tea in a uniform, gentle stream so as not to inject large amounts of air at once, which escapes and creates foam in the tea.
Also, avoid teas that have tightly twisted leaves, as they usually foam up a lot when poured with boiling water. The type of dried herb also influences the formation of foam. The most froth in tea will be produced when small, twisted leaves are poured with water.
