Seal Plastic Bags Airtight with Aluminum Foil and Iron
Here's a clever way to keep food from spoiling.Seal it in an airtight bag. But first, you might want to reuse the same bag a food came in instead of putting it into an airtight one. Reddit user gastropump suggests that you can use an iron to cinch the bag shut.
Its like a vacuum sealer and it works to keep the food lasting longer. You can also add a fold of aluminium foil over the opening of the bag and then run over the foil for a few minutes so the plastic melts together.