After the adhesive label is torn off, there are still glue stains that are difficult to remove. Method:
1. After blister labeling, scrape off the paper and leave glue stains.
2. Wipe off the glue stains and the water at the bottom of the bottle with a rag, and drop it into the stock solution for hand washing (do not dilute it with water). Wipe the glue stains repeatedly with your fingers or a slightly wet towel, and the glue stains will fall off and be removed.
3. Finally, rinse with water and towel.