Tea foam is rich in nutritional value, don't pour it away!
When brewing tea, foam forms on the surface due to water agitation. This foam is primarily composed of tea saponin, a complex glycoside compound. Contrary to the common misconception of viewing it as undesirable scum to be skimmed off, tea saponin is actually a valuable component. It exhibits variou...
Tea News · Feb 13, 2026
Is It Normal for Tea to Have Foam When Brewed?
When brewing tea, the appearance of foam on the surface of the first infusion is a common and natural occurrence, often misunderstood as dirt or pesticide residue. In reality, this foam is primarily caused by tea saponin, a compound found in tea leaves that has strong foaming properties. Other facto...
Tea News · Sep 22, 2025
1