If the ambient temperature is above $90^{\circ}\text{F}$ ($32^{\circ}\text{C}$), how long is perishable food allowed to remain in the danger zone before refrigeration is required?

Answer

One hour

The standard Two-Hour Rule shrinks to just one hour when the ambient temperature exceeds $90^{\circ}\text{F}$ ($32^{\circ}\text{C}$), such as during an outdoor summer event.

If the ambient temperature is above $90^{\circ}\text{F}$ ($32^{\circ}\text{C}$), how long is perishable food allowed to remain in the danger zone before refrigeration is required?
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