Which tea variety is explicitly noted as an extremely high quality product requiring intensive shading, primarily as the precursor leaf for Matcha?

Answer

Tencha

Tencha holds a unique place among high-quality Japanese teas because its primary designation relates to its preparation for a specific final product. Like Gyokuro, Tencha undergoes intensive shading, leading to a premium chemical composition. However, Tencha is defined by being the leaf material *before* it undergoes grinding to become Matcha powder. While it is considered elite due to the cultivation methods employed, its role is often seen as preparatory rather than being a standalone infusion grade in the same sense that Gyokuro is enjoyed.

Which tea variety is explicitly noted as an extremely high quality product requiring intensive shading, primarily as the precursor leaf for Matcha?
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