Nuked bread can last up to 60 days, according to the company, MicroZap, which spun off from Texas Tech University. Among wasted foods, bread is a major culprit, meeting its end in the garbage can once it becomes festooned with greenish growths of mold. This usually happens within 10 days of the bread being baked. MicroZap’s method kills the mold spores, keeping bread mold-free for two months and helping Americans reduce some of their food waste.
The equipment, which looks like a CT scanner for food, was originally developed to kill organisms like multi-resistant staph bacteria and salmonella. But its developers realized it also kills bread mold in about a 10-second zap. It works much like a home microwave, but the waves are produced in various frequencies, which allows for uniform heating, according to MicroZap CEO Don Stull.