Vacuum bags are an important part of the vacuum sealing process. By using a vacuum sealers, you are able to remove all of the air from the vacuum bag and create a seal.
This seal helps to keep food fresh for a longer period of time and also prevents freezer burn. Without a vacuum sealer, the bags will not work properly and air will still be able to enter the bag. This air will cause the food to spoil and will also cause freezer burn.
But if you’re using vacuum sealing bags to store something temporarily- like clothes while you travel- you don’t need a vacuum. You can simply close the bag using a Closure Sealer.
Although you can use vacuum sealing bags without a vacuum sealer but you should control using plastics.