[Zeppo]

and could lead to sandwiches that stay fresh for more than a year

The Madison Avenue wordsmiths are gonna have to work overtime to dress that up a bit.

"Just sprinkle some 'stay-fresh' bacteria on your sandwich, then toss it in your desk drawer or your briefcase for the next time that you need a sensible snack - yum."

Uh, no.

[Titus-Maximus]

But think of the military application, or bringing food to disaster areas that normally rots on piers.

Could be a huge breakthrough.