Can the Screw Top Tin Can maintain a good airtightness after being unsealed and repackaged?- Tongxiang Jiutong Packaging Technology Co., Ltd.

Can the Screw Top Tin Can maintain a good airtightness after being unsealed and repackaged?

2023-09-07

While screw top tin cans are not specifically designed for resealing after being unsealed, some individuals have found ways to achieve a certain level of airtightness by repackaging the contents and using careful sealing techniques. However, it's important to note that the airtightness achieved after resealing may not be as effective as the original seal, and it can vary based on factors such as the type of contents, the quality of the can and lid, and the resealing method used.

Here are some general steps you can take if you want to attempt to maintain a level of airtightness after unsealing and repackaging a screw top tin can:

Empty the Contents: Remove the contents of the tin can and place them into a suitable airtight container or plastic bag.

Clean the Can: Ensure that the inside of the tin can is clean and free from any residue.

Sealing Technique: When screwing the lid back onto the can, try to align the threads as closely as possible and apply even pressure. Make sure the lid is seated securely.

Label and Date: Label the repackaged container with the contents and the date to track freshness.

Limited Airtightness: While some airtightness might be achieved, it's important to understand that the resealing may not be as effective as the original seal. The can's design may not allow for the same level of pressure and alignment that is possible during the initial factory sealing process.

Use Contents Promptly: Even with careful resealing, it's advisable to use the contents of the repackaged can promptly to ensure freshness and food safety.

It's important to approach resealing with caution and to be aware that the airtightness achieved might not be sufficient for all types of contents. For foods that are particularly sensitive to air and moisture exposure, it's recommended to use alternative airtight storage solutions, such as resealable plastic bags or airtight containers.