[Dalrymple]

Could someone explain why the thin flatbread known as the tortilla seems to last much longer in a sealed bag? Ordinary bread molds on me in 4-5 days. I have kept a bag of tortillas around for a couple weeks without any mold. They do get stale if one forgets to seal the zip-type bag.

[vb6sp6]

The tortillas likely have have chemical leaving and extra preservatives. Make tortillas from scratch and they will also mold in a few days.