1, open the computer browser, online search for the State Food and Drug Administration.

2, click into the official website, in the official online menu bar in the food function column.

3, click on the food function, in the query interface on the left menu bar to find the food production license licensed enterprises.

4, click to enter the selection of the type of enterprise they need to query, enter the keywords of the query, click on the query.

5, in the search results to view the results of the query, click on the results they want to see.

6, enter the view details, such as certificate number, production address, certificate expiration date.