The bags are biodegradable but as tough as traditional plastic vacuum sealer bags. You can just use it as you always do.
The bags are made with first-class gas barrier and water barrier. Your food can be fully sealed from the external environment.
Oxygen transmission rate:
0.1 cm³ / (㎡·24h·0.1Mpa)
Water vapor transmission rate:
13.8 g / (㎡·24h)