Can a tea be made by boiling any evergreen leaf in water?

It's definitely not true, no matter what definition of "evergreen" is used. Certain evergreens such as Oleander are among the most toxic plants known. Even if the definition is narrowed to evergreen conifers, the statement you heard is patently false. read more

It's definitely not true, no matter what definition of"evergreen" is used. Certain evergreens such as Oleander are among the most toxic plants known. read more

So I did my research and I found out not only that boiling the water to make tea does not act in detriment of the infusion, but also that, in some cases, it improves the quality of the water that is going to be used to brew tea. read more

Boiling water eliminates many harmful germs and bacteria. Though water quality has improved vastly, boiling in the water in this fashion can help to bring out tea's flavor. The water should be heated until a steady stream of air bubbles gently rise to the surface. At this point, the water is sufficiently heated and also has a preferable oxygen content. In contrast, using water that has been held at a fierce, rolling boil can leave tea tasting dull and flat. read more