As with Kim Hing’s bottling process, food kept within the retort pouch do not require preservatives, they are hermetically sealed with vacuum technology and hygienically sterilized by a heat treatment process. Their shelf life is extended for months till they are opened. Kim Hing does R&D to find out the most optimum temperature to keep the food safe and yet maintain its taste and texture . The food tastes just as good as it was just cooked and can be consumed upon opening, offering convenience to consumers and food service operators.