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主题:【原创】你洗过环保袋吗? -- 游识猷

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d
家园 关于冷冻,的确不能杀菌

Berkeley Wellness Alerts (January 5, 2010)

Freezing does not kill most microbes, but puts them in a dormant state. Thus, frozen food cannot spoil if it stays frozen. When you thaw frozen foods, especially meats and fish, you should cook them to the same degree of doneness as if they had been fresh. (Fish intended for sushi is usually deep-frozen to kill parasites, but most home freezers are not cold enough for this.)

谢谢你的提醒,去查了一下,一分钟的事情就清楚了。我之前有印象说鱼刺身深冻以后可以杀灭细菌,看来不准确,可能对鱼肉里的寄生虫有效,而对一般细菌无效。

不过,阳光暴晒效果应该还是不错的,紫外线可以覆盖大部分表面,当然,效果是抑菌而不是无菌,比这个更彻底那就要上消毒液(我一向不喜欢用,怕洗不干净反而污染)或者蒸笼了,还是晒太阳实用方便环保。

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