How do tightening food-grade aluminum residue rules reshape alum demand in China?

How do tightening food-grade aluminum residue rules reshape alum demand in China?
China's regulatory tightening on aluminum residues in food is a structural demand shifter for potassium aluminum sulfate, commonly known as alum. The 2014 ban on aluminum-containing leavening agents in fried dough products and the strict 100 mg/kg residue limit for dried aquatic products have pushed traditional users toward reformulation. Jellyfish processing, historically reliant on the 'three-alum, two-water' method, now faces compliance pressure, with many producers unable to meet the standard. This has created a bifurcated market: food-grade alum faces shrinking and more regulated demand, while industrial applications—water treatment, papermaking, leather tanning, and cosmetics—remain steady growth pillars. Buyers should watch regulatory enforcement intensity, as it directly impacts the viability of lower-cost, higher-residue supply chains.