When sourcing cookware cleaners, prioritize formulations that are biodegradable and non-toxic. Ensure the product complies with REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) for the EU market or TSCA (Toxic Substances Control Act) for the US. For heavy-duty pastes, verify the absence of harsh abrasives that could damage non-stick coatings or polished stainless steel. Look for suppliers providing MSDS (Material Safety Data Sheets) to confirm chemical stability and safety protocols.