While PTFE is much more inert than common glass and even than borosilicate glass, it is not a good material for food storage.
The reason is that PTFE, like any plastic, is porous, so it can never be perfectly cleaned, but it will retain embedded in it some residues of the food previously stored in it. This can lead just to some undesirable smell, but in appropriate temperature and humidity conditions it can also lead to the growth of bacteria.
For food storage and handling, the best food-contact materials remain glasses or metals, which can be cleaned perfectly.
The reason is that PTFE, like any plastic, is porous, so it can never be perfectly cleaned, but it will retain embedded in it some residues of the food previously stored in it. This can lead just to some undesirable smell, but in appropriate temperature and humidity conditions it can also lead to the growth of bacteria.
For food storage and handling, the best food-contact materials remain glasses or metals, which can be cleaned perfectly.