今天一起来揭秘食品包装上的保质期真相。这些日期真的代表食品安全吗？微生物学家告诉你，过期不等于有害，科学辨识帮你减少浪费，省钱又环保。一起用理性守护餐桌安全，告别盲目丢弃吧。
Have you ever taken some milk from the fridge and you notice it's past its sell-by date?
Looks okay.
The sniff test suggested it smells okay, but is it?
I'm Cheryl Kirshenbaum, and on this episode of Serving Up Science, we're taking a closer look at the dates on our food labels.
Before we get into the nitty gritty, let's talk microorganisms and food.
Microorganisms are present in nature and are actually an important part of some of our favorite foods like yogurt, beer, and cheese. However, certain types of microorganisms can lead to real problems.
Pathogenic bacteria causes serious outbreaks of foodborne illness, and it's typically found in what we might call high-risk items like chicken milk, cold cuts, and sliced vegetables.
These outbreaks often make the news, from E.coli to listeria.
Then there's spoilage bacteria, which causes food to go bad and develop unappetizing characteristics like a funky taste or odor.
But don't worry, the good news is that spoiled food won't usually kill you.
