Fish, shrimp, shellfish and other aquatic products, canned, due to proteolytic produce volatile sulfur heating or high-temperature sterilization process, the reaction with the tank wall layer of tin sulfide generation purple spots (sulfide), the production of iron sulfide and iron reaction, so that the tank the inner wall appear purple, even black, serious black material on the inner wall will crystallize out and pollute the contents.

      Number of fish species generation amount of volatile sulfur, pH value, and so on freshness. General freshness difference, the amount of volatile sulfur under basic conditions produced more; will cause blackening, when canned inadequate cooling during storage will be black when heated sterilization.

     For sulfide pollution problems, following the production of a variety of beverages covered by professional, iron and aluminum EOE businesses - Packaging Co., Ltd., Dongguan City real promise to serve you a brief introduction about the sulfide contamination there is a way to solve.

    1, the process is strictly prohibited contact with iron, copper and other machine equipment, pay attention to controlling the water content and ingredients of these metal ions.

    2, the use of anti-sulfur coating Rail Can a container.

   3, should strictly check the quality of cans and rubber gasket, if empty paint layer is destroyed in the process should be promptly painted up.

   4, the control raw freshness.

   5, the pre-cooked in boiling water was added a small amount of an organic acid, citric acid 0.1% semi-finished soaking 1 ~ 2min, after canning to control the pH value of about 6.

     Dongguan suno EOE is a professional production of beverages easy-open lid, aluminum and iron EOE EOE manufacturers, the company's products attractive appearance refined; design structural precision, good sealing performance, nothing more than diarrhea, not into the air, ensure product quality and lasting. Welcome to the new and old customers call to order. 0769-28686423 / 0769-22335080 / 13266285888