Buying untreated wenwan walnuts: Hetaobiaomei's screening approach

This is an English reading overview of the Chinese article, rather than a complete translation. Follow the original below for the full explanation and supporting details.

The central idea

The article explains how source checks, physical screening and transparent selling support a purchase decision. A shape name or a large size alone does not prove chemical treatment. Ask about the source and inspection standards, then examine the actual shell and surface. Exact-pair photographs and six-side videos provide information that a single front view cannot.