Same White Powder, 30 Percent More: What a Hygiene Grade Actually Buys
Two sacks that look identical, one 30 percent dearer. Residual monomer, bioburden, fines, surface crosslinking and paperwork compared for industrial buyers.
The Powder That Holds 400 Times Its Weight and Still Makes a Watery Pack
A gel pack plant in Ningbo shipped 1,200 one-kilo packs to a seafood customer in June and got 38 back as complaints. The film was intact, the seals were clean, and every pack still weighed what it should. But each bag carried a film of free water sliding around inside, photographed on a white tray. …
