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Unformatted text preview: If youre sterilizing something very large, like a large vat of liquid, its difficult for the steam to penetrate If youre autoclaving something like surgical instruments, you wrap them in a porous material first, so that microbes dont get back onto them after theyre autoclaved o Pasteurization At the time that this was invented at the turn of the last century, there were huge problems with pathogens transmitted through milk, such as tuberculosis You need to very carefully control both the absolute temperature and the flow of the milk through the machine Flash pasteurization is 71 degrees Celsius for 15 seconds There is always the possibility today of picking up pathogens like Listeria, Salmonella, and E. coli if you consume non-pasteurized dairy...
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- Fall '09