Is There a Relationship Between Tea Foam and Tea Quality?
When brewing tea, the foam that forms is primarily caused by substances like tea saponin, proteins, solid powders, and charcoal dust present in the tea leaves. Tea saponin, in particular, is a natural foaming agent. The amount of foam is not an indicator of tea quality. For instance, teas with fine...
Tea News · Jan 07, 2026
Can the foam in tea be drunk?
When brewing tea, foam forms on the surface due to water agitation. Many people mistakenly believe this foam is harmful and remove it, but it actually contains tea saponin, a beneficial compound. Tea saponin is a glycoside with a slightly bitter taste and strong foaming properties. It has numerous h...
Tea News · Jul 23, 2025
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