The danger zone
Identifying TCS Foods
Stage 2 cooling process
Safe Thawing & Reheating
Conditions for Bacterial Growth
100

This term refers to the temperature range between 41°F and 135°F where bacteria multiply rapidly.

Temperature Danger Zone

100

What is animal origin?

Any food coming from beef, chicken, or pork is considered a TCS food.

100

In Step 1 of two-stage cooling, hot TCS food must be cooled from 135°F down to 70°F within this maximum time frame.

2 hours

100

Previously cooked TCS food held for hot service must be reheated to an internal temperature of 165°F for at least this many seconds.

15 sec

100

What are the capital letters into this?

FAT TOM

200

Hot TCS food must be held at or above this minimum temperature to prevent bacterial growth.

135°F

200

Once sliced or chopped, these three plant products automatically become TCS foods.

cut melons, cut tomatoes, and cut leafy greens

200

Step 2 of two-stage cooling requires food to drop from 70°F to 41°F (or below) within this many additional hours.

4 hours

200

Reheating of TCS foods to 165°F must be accomplished rapidly, not exceeding this total amount of time.

2 hours

200

What does the M in FAT TOM stands for?

Moisture

300

Cold TCS food must be stored and held at or below this internal temperature.

41°F

300

Unprocessed, raw plant products of this type must be treated as TCS foods due to high moisture and nutrient levels on their surface.

raw seed sprouts

300

The maximum total continuous time allowed to complete both stages of cooling hot TCS food down to 41°F.

6 hours

300

When thawing under running drinking water, the water temperature must not exceed this level.

70 degrees F

300

The two T in FAT TOM represent these two critical factors used to manage safety in TCS foods.

Time and temperature

400

The maximum total time cold TCS food can be held without temperature control if its temperature never exceeds 70°F.

6 hours

400

Starchy cooked plant foods like these two common side dishes require time and temperature control.

cooked rice and cooked potatoes

400

This equipment uses high-velocity cold air to cool hot food through the danger zone extremely fast.

blast chiller

400

Food thawed in this appliance must be cooked immediately afterward as part of a continuous process.

microwave

400

The A in FAT TOM stands for Acidity, and bacteria grow best in foods that are neutral to slightly acidic within this pH range.

4.6 to 7.5

500

Bacteria can double in number in as little as this many minutes when in the danger zone.

20 minutes

500

Untreated mixtures containing garlic immersed in this ingredient are classified as TCS foods to prevent Clostridium botulinum growth.

oil

500

This simple container adjustment helps speed up heat transfer when placing hot liquids or casseroles into a refrigerator to cool.

shallow metal pans 

500

Ready-to-eat TCS food prepared in-house can be stored under refrigeration at 41°F or lower for a maximum of this many days.

6-7 days

500

The M in FAT TOM stands for Moisture, which is measured by water activity. on a scale from 0.0 to 1.0; TCS foods typically have a water activity of this level or higher.

0.85

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