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National Restaurant Association - Recognizing TCS food

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Recognizing TCS food

When working to prevent foodborne illness, it’s important to recognize that some food items are more likely than others to become unsafe. Those items are known as TCS food. TCS food requires time and temperature controls to prevent the growth of microorganisms and the production of toxins. This food contains moisture and protein and has a neutral or slightly acidic pH.

Most bacteria need nutrients such as carbohydrates or proteins to survive. Also, bacteria grow best in food that contains little or no acid. Measuring acidity, the pH scale ranges from 0 to 14. A value of 0 is highly acidic, while a value of 14 is highly alkaline. A value of 7 is neutral. TCS food items generally have a pH of 7.5 to 4.6.

Bacteria need time to grow and grow rapidly when being held between 41˚F and 135˚F, also known as the temperature danger zone. The more time bacteria spend in this zone, the more opportunity they have to grow to unsafe levels. Be sure to keep an eye on your time and temperature control when preparing these food items.

Related content

Cooking TCS Food

Cooling food correctly

Learn the definition of TCS and FDA recommended cooking temperatures. 
What’s the right degree?
Avoid temperature danger zones by reading these guidelines. 
Stay in the safe zone

For more information on TCS food, check out our ServSafe Food Safety Program.


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