If you let others process the food for you and sell it under your own brand, you should make the following points clear on the packaging:

1. **Product Information**: Including information such as the name, brand, net content, production date and shelf life of the food.

2. **Official processing information**: Clearly indicate on the packaging that the food is processed by your brand, and provide the name and contact information of the processing company.

3. **Ingredient and nutritional information**: In accordance with relevant regulations, indicate the main ingredients and nutritional content of the food.

4. **Food safety information**: For example, information such as ISO certification or other food safety standard certification.

5. **Production License Number**: If your product requires a state-issued production license, the number should be displayed on the packaging.

6. **Product standard code**: such as SB/T and other national or industry standard codes.

7. **Traceability information**: Provide traceability information on product origin, production process, raw materials, etc.

8. **Contact information**: including company address, phone number, email, website, etc., to facilitate consumers to contact you.

9. **Usage Guidelines or Storage Methods**: For some foods that require special use or storage, such as refrigeration, heating, etc., clear instructions should be given on the packaging.

10. **qs mark**: The qs mark is a food market access mark. Products with the qs mark indicate that they have passed the national compulsory inspection.

In addition, you also need to ensure that all packaging materials comply with relevant national regulations. If you have any questions, it is recommended to consult relevant professionals or institutions.