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DOES PRESSURE
COOKING KILL
BACTERIA?
By Corrigan Duffy
High pressure is one of the best ways to kill
bacteria.
High Pressure Environments
Advantages of Pressure
Cooking
Pressure Cooking can be
applied to a wide variety
of foods which may be
damaged in the proc...
Advantages of Pressure
Cooking
Pressure cooking
preserves all of the
crucial elements of food
which ensure that it still
t...
Advantages of Pressure
Cooking
Pressure cooking allows
for the selective
destruction of only the
damaging bacteria which
y...
Home pressure cookers do not generate
enough pressure to completely sterilize
food.
Pressure Cooking Limitations
How Much Pressure Is Needed
The Center for Disease
Control and Prevention’s
(CDC) guideline for
disinfection and
steriliza...
Is 11 PSI Good Enough?
Using your pressure
cooker on high (~11psi)
to cook and prepare food
is going to kill the
overwhelm...
Credits: Photos used in this presentation fall under CC0 (free to use) licensing.
Learn more and see presentation source m...
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Does Pressure Cooking Kill Bacteria

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Pressure canners kill enough bacteria to preserve foods for longer periods of time in the home but does this mean pressure cookers kill bacteria too? Do they sterilize foods? This presentation presents the evidence in a succinct manner with sources available. For more on this topic see the source page for this presentation at http://www.corriecooks.com/does-pressure-cooking-kill-bacteria/.

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Does Pressure Cooking Kill Bacteria

  1. 1. DOES PRESSURE COOKING KILL BACTERIA? By Corrigan Duffy
  2. 2. High pressure is one of the best ways to kill bacteria. High Pressure Environments
  3. 3. Advantages of Pressure Cooking Pressure Cooking can be applied to a wide variety of foods which may be damaged in the process of sterilization by other methods. This is particularly notable when it comes to foods which are high in acid content like strawberries.
  4. 4. Advantages of Pressure Cooking Pressure cooking preserves all of the crucial elements of food which ensure that it still tastes great following the treatment. Other techniques like exposure to heat or controlled radiation can negatively impact the taste of the food once it has been sterilized.
  5. 5. Advantages of Pressure Cooking Pressure cooking allows for the selective destruction of only the damaging bacteria which you are looking to destroy. This means that, for example, E.coli can be targeted and eradicated under pressure whilst smaller micro-organisms which may be beneficial to nutrition are able to survive intact.
  6. 6. Home pressure cookers do not generate enough pressure to completely sterilize food. Pressure Cooking Limitations
  7. 7. How Much Pressure Is Needed The Center for Disease Control and Prevention’s (CDC) guideline for disinfection and sterilization in healthcare facilities suggests that sterilization is only achieved fully when a pressure cooker that reaches 15 psi is able to run at this high pressure for a 30 minute period. http://www.cdc.gov/hicpac/disinfection _sterilization/13_0sterilization.html
  8. 8. Is 11 PSI Good Enough? Using your pressure cooker on high (~11psi) to cook and prepare food is going to kill the overwhelming majority of bacteria which are responsible for food poisoning including Salmonella, E.coli, and a whole lot more.
  9. 9. Credits: Photos used in this presentation fall under CC0 (free to use) licensing. Learn more and see presentation source material at: http://www.corriecooks.com/bacteria/

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