Knowing Store Food With Dry Ice is is an alternative to method to help preserve your food storage. This method is slightly more complicated than using Oxygen absorbers, but it is cheaper. Additionally, depending on your location, this method is easier to do since most large grocery stores as well as welding supply companies have dry ice and most people have to order O2 absorbers online.
Dry ice is just frozen carbon dioxide gas. A block of CO2 warms to room temperature it turns into the harmless gas. One pound of the ice will turn into almost 8 and ½ cubic feet of gas. Therefore, it does not take much to fill the air spaces around your tiny grains of rice or wheat berries.
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