China released GB 2762-2025, the updated National Food Safety Standard for contaminant limits in food, on September 2, 2025. It becomes enforceable on September 2, 2026, replacing the 2022 version.
This standard sets maximum allowable levels for 13 contaminants—lead, cadmium, mercury, arsenic, tin, nickel, chromium, nitrite, nitrate, benzo[a]pyrene, N-dimethylnitrosamine, polychlorinated biphenyls, and 3-chloro-1,2-propanediol—across virtually every food category sold in China.
The revisions target specific product categories where contamination risk or exposure patterns have shifted:
Dried meat products saw adjusted limits for lead, cadmium, arsenic, and chromium. These changes reflect concentration effects during drying and updated risk assessments for preserved meats—a major category in Chinese consumption.
Packaged drinking water (excluding natural mineral water) now has tighter nitrite limits. This addresses concerns about processing water quality and potential microbial contamination indicators.
Edible bird's nests received new nitrite limits for the first time (30 mg/kg). Bird's nest products have been flagged repeatedly in import inspections for nitrite residues from processing or preservation practices, and this formalizes control requirements.
The limits apply to the edible portion of food as normally consumed—meaning contaminant levels are calculated after you remove shells, bones, peels, or other inedible parts.
For dried products (aquatic products, edible fungi), the standard allows conversion: if you know the dehydration ratio, you can back-calculate whether the dried product complies based on fresh-product limits. This prevents unfair rejection of compliant dried goods just because water removal concentrated the contaminant.
One practical detail: for mercury and arsenic, if total levels are below the limit for the more toxic form (methylmercury or inorganic arsenic), you're compliant without needing speciation analysis. Only if total exceeds the limit do you need to test the specific hazardous form.
If you export to China or manufacture there, compliance is mandatory by September 2026. Products tested after that date must meet the new limits, even if they were produced earlier under the old standard.
The revisions aren't drastic, but they tighten control in categories where contamination incidents have been persistent—particularly processed meats, packaged water, and specialty products like bird's nest. Suppliers in these categories should verify current testing protocols and upstream ingredient sourcing now, not in August 2026.
Testing methods are specified by contaminant and product type (GB 5009 series for most foods, GB 8538 for packaged water). Labs need to be using the correct method—swapping methods can produce non-comparable results and trigger compliance failures even when contamination is within limits.
China's market regulators conduct both pre-market approval testing (for new products or imports) and post-market surveillance. Non-compliance can result in product detention at borders, mandatory recalls, facility inspections, and in repeat cases, import bans or manufacturing suspensions.
The 12-month window between publication and enforcement is intentional—it's the buffer for reformulation, supplier audits, and lab validation. Companies waiting until mid-2026 to confirm compliance are cutting it close, especially if upstream ingredient changes are needed.
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