While my method of determining if meat has gone bad — the ol' snifferoo — is usually pretty reliable, it might be prudent to back it up with something for when I have a cold. Time to say hello to the Sensor Fresh meat "sniffer."

While the claim that its sensor uses "technology developed for the military" could be just hype, the Sensor Fresh has a microprocessor that takes more than 2,000 readings for bacteria in less than a minute to calculate whether that chunk of sirloin that's been sitting in your fridge all week is ready for the grill or the trash. It costs a somewhat steep $90, and keep in mind you need a couple of AA batteries as well as replacements for the sensor every 200 uses. Probably only worth it if you're a serious carnivore. — Peter Pachal

Cooking Enthusiast, via Book of Joe