Living · 6 pages · 12 min

Why the danger zone is about time and temperature

Guidance pairs a middle temperature band with a clock, because that is where bacteria multiply.

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From the opening

The danger zone is a way of saying that many bacteria in food multiply in a middle band of temperature, not in the cold of a fridge and not at the heat of a thorough cook. Guidance pairs that band with time because growth is doubling, and doubling needs a clock. The opening covers a growth band, not a single degree, doubling that needs a clock, and why a big pot cools too slowly.

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Inside

A growth band, not a single degree
Doubling that needs a clock
Why a big pot cools too slowly
Acid, salt, or dryness change the odds
Where the idea stops applying
A distinction worth keeping

Sources

Mesophilic bacterial growth and temperature
Time-and-temperature food safety guidance

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Why the danger zone is about time and temperature

From the opening

Inside

Sources

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