Microbial Rennet Paste from Japan

Thick paste concentrate of microbially produced chymosin, mimicking calf rennet for vegan cheesemaking. Despite functional similarity, it is classified under HTS 3507.10.00.00 when labeled and sold as rennet substitute concentrate. Widely used in modern dairy industries.

Duty Rate — Japan → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Submit FDA biotech consultation summary if genetically engineered, as microbial rennet often is

Declare exact chymosin activity and production method to avoid reclassification as general protease

Use refrigerated shipping to maintain enzyme viability, with temperature logs for import inspection