Since the Sharia law has special regulations on the food eaten by Muslims, there is a need for halal certification. Halal certification is a scientific method to test whether food contains substances that are not allowed by Islamic law. Products that pass the test can obtain the official certification mark. When importing through the customs, you must submit relevant documents to enter the halal food area. When participating in the food exhibition of Muslim countries, the products can also be displayed in the halal area. From this point of view, halal certification is a stepping stone for manufacturers to enter the vast Muslim food market.

In ancient times, Muslims could tell whether a food was halal from the appearance of the food because there were few processed foods. However, with the advancement of food processing technology, the complexity of shipping and shipping, the complexity of international trade, and the more advanced refrigeration technology, it is no longer possible to judge whether a product is halal from the appearance alone. The need for halal certification was born.

The central theme of halal certification is that "from the place of origin to the table, halal food must not be contaminated by illegal substances", so as to ensure that the food consumed by consumers meets the requirements of their religion. From the owner's point of view, halal certification is not only whether the product terminal test contains illegal substances, but more importantly, whether the raw materials are also halal and free from pollution. In the process of food production and processing, whether there is a clear separation from illegal substances. After food production, whether there is cross-contamination with illegal substances in the process of logistics, transportation and freezing. Finally, when halal food is cooked and sold, is it properly separated from illegal substances during the production process. To sum up, halal certification is more concerned with whether the food meets the halal requirements at every level from the raw materials to the production process, not only the terminal products meet the halal certification.