According to Article 58 of Q&A (Revised Edition) of General Rules for Marks of prepackaged foods (GB7718-201): Article 4. 1.7. 1 of this specification "Date marks shall not be attached, printed or modified". If all food labels are made by self-adhesive method, including date information such as "production date" or "shelf life", all self-adhesive labels attached to food packaging meet the requirements of this standard. In other words, if you choose to re-create a complete self-adhesive label, covering all the inherent identification information, you can deal with the wrong identification date.