On Oct 14, 11:00*am, (Steve Firth) wrote:
harry wrote:
So why does it rot if the bag is damaged?

For the same reason that a jar of sauerkraut rots if you remove the lid.

CO2 gets out, air gets in.

The first is not relevant. Silage is not preserved by CO2. OTOH your
brain appears to run entirely on CO2. No use of oxygen there.

Someone else has put up a link confirming what I said.