Why is covering the infusion vessel crucial when steeping dried mallow leaves and flowers in hot water for 10 to 15 minutes?

Answer

To trap the steam and volatile oils

When preparing a standard hot infusion of mallow, covering the cup during the 10 to 15-minute steeping period is a necessary technical step. This action prevents the escape of volatile oils and steam that rise from the hot water. These volatile components often carry beneficial aromatic or therapeutic properties, and trapping them ensures they remain in the final beverage, contributing to the overall effect of the tea rather than dissipating into the air.

Why is covering the infusion vessel crucial when steeping dried mallow leaves and flowers in hot water for 10 to 15 minutes?
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