
Originally Posted by
Utah State University Extension Service
There are two different safety concerns here. With canning, the danger is the spores of Clostridium botulinum. Acidic foods such as fruits, tomatoes, and pickles have a low enough pH (< 4.6) to control C. bot growth. Because meats have higher pH (typically 5.5 – 6.5), any C. bot spores in the bottle can become vegetative and produce toxin. So for bottling/canning meats you must apply sufficient pressure to raise the temperature well above boiling point to destroy spores. This is basis for higher pressure at higher elevations (because water boils at a lower temperature here than at sea level).
With normal cooking, the danger is living bacteria such as E. coli and Salmonella. There are some cases where we worry about spore formers, but that is due to improper cooling or holding hot foods at temperatures below 140F. So in smoking brisket, the important factor is to reach a safe internal temperature. Often the internal temp is well above what’s considered safe, because long cooking times are required to achieve the desired texture (being able to “pull” the meat apart).
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