KAGOSHIMA -- The Kagoshima Prefectural Government has patented a freeze-drying method for green tea beverages that dissolve easily in cold water, and replicate the flavor of carefully brewed tea ...

In earlier experiments virus was preserved by freeze-drying, but much infectivity was lost. In recent experiments viruses seem to have been better stabilized, and the results are reported here.

Drying herbs for tea is a simple way to sample some of summer’s bounty long after the garden succumbs to fall chills or gets blanketed in winter snow. So how do you dry herbs for tea?