Can Heat Kill Bacteria

Can Heat Kill Bacteriaの概要と注目ポイントを一挙に解説しました。

Ever nuked a burrito and bitten into a cold center? That’s your microwave’s dirty secret. Microwaves heat unevenly—they excite water molecules, but don’t actually penetrate deep into solid foods. So while the outside of your chicken might be at 180°F, the inside could be a balmy 80°F spa for bacteria.

This is why food safety experts scream: stir your leftovers and use a thermometer. Don’t trust the “ping” sound. Bacteria don’t care about your impatience—they’ll multiply faster than your ex’s new Instagram posts.

Fun fact: Microwaves can also kill bacteria by electric arcing, not just heat. But unless you want to watch tiny lightning bolts zap your soup, just stick to thorough heating.

Chapter 8 Controlling Microbes | BS2002: Microbiology

The Sneaky Survivors: Why Boiling Isn’t Always Enough

Let’s talk about Clostridium botulinum, the bacteria behind botulism. It’s the villain of canned beans and maybe your last camping trip. Its spores can survive boiling at 212°F for hours. It takes pressure canning at 240°F to finally give them a dirt nap.

And don’t forget Listeria, which can lurk in your fridge at 40°F and still multiply. It’s the ninja of the microbial world. But a blast of 165°F heat? That sends them to the great petri dish in the sky.

Temperature also matters with time. You can kill bacteria at 145°F if you hold it for 30 minutes. This is why pasteurization works—milk gets heated to 161°F for just 15 seconds. It’s a quick assassination, not a slow torturing.