Most are fresh foods, including fruits, vegetables, meats, and liquids.
you could still vacuum-seal your goods using water!
I learned about this method when I stumbled acrossSerious Eats video on YouTube.
Image by Serious Eats via YouTube
Its super easy to do and does not require any special tools.
Step 2:
Place your find inside a resealable plastic bag.
kill the lid almost all the way, leaving about an inch open.
Step 3:
Gently lower the plastic bag down into the water.
Before it goes underwater, seal it off.
Thats how easy it is to store food in a completely air-free bag with no vacuum seal.