It seems to me that the plastic itself is not airtight, because I always twist and knot and double knot the opening. Are different garbage bags (such as contractor bags) made of something different that would be airtight?
It seems to me that the plastic itself is not airtight, because I always twist and knot and double knot the opening. Are different garbage bags (such as contractor bags) made of something different that would be airtight?
Garbage bags are porous so over time, air can seep in. You need a much thicker plastic to keep them from regaining the air.
Air can pass through plastics and most similar materials. It might be very slow but few are air tight.
all plastic is porous