The TL;DR Summary Food-grade materials are specifically engineered to be "non-migratory," meaning they do not leach harmful chemicals (like BPA or phthalates) into the food even under heat or pressure. Non-food-grade materials often contain dyes, recycled contaminants, or industrial stabilizers that are toxic if consumed. As of 2026, new FSSAI regulations strictly define "food contact materials" and require rigorous migration testing for any material touching your product.

TL;DR: SS302 vs. SS304 vs. SS316 Key Takeaway: Choosing the right stainless steel grade is a balance between cost and corrosion resistance. SS302 is best for high-strength mechanical parts (like springs) in dry environments. SS304 is the universal "Food-Grade" standard, perfect for most snacks and dry goods. SS316 is the premium choice for pharmaceuticals or acidic/salty products (pickles, liquids), as its molybdenum content prevents "pitting" and rust where other steels fai