Storage Order and FIFO

Storage is where food spends most of its life in an operation, and where two separate failures hide. One is contamination, which storage order and separation control. The other is age, which stock rotation and date marking control. Both get tested, and they are tested together.

What does FIFO stand for in food safety?

FIFO stands for First In, First Out, the stock rotation system in which the oldest product is used before newer product of the same item. In practice it means the delivery that arrived Monday gets used before the one that arrived Thursday, every time.

FIFO is implemented with four habits:

1. Date every item on receipt or on preparation, with a use-by or discard date.
2. Shelve new stock behind or beneath older stock, so the oldest item is the one a cook reaches first.
3. Use the product at the front. The system fails the moment somebody grabs the fresher case because it is easier to reach.
4. Discard anything past its use-by date, and check for it during routine storage walkthroughs.

FIFO applies everywhere, not only in the walk-in: dry storage, freezers, reach-ins, prep coolers, and the pantry. Frozen product still ages, and dry goods still expire.

The exam usually presents FIFO as either a definition question or a short scenario where somebody reaches past the older case. The correct practice is always to use the oldest product first.

FIFO and date marking work as a pair. Date marking tells you how old something is, and FIFO makes sure the oldest gets used while it is still good. Neither one does much alone: a dated container nobody rotates still expires on the shelf, and rotation without dates is guesswork.

The cooler storage order

Food is arranged in a cooler by minimum internal cooking temperature, with the lowest cooking temperature on top and the highest on the bottom. The reason is drips. If raw poultry leaks, it must not land on anything that will be cooked to a lower temperature or served without cooking.

A memory aid that survives exam pressure: R-S-B-G-P, for Ready-to-eat, Seafood, Beef and pork whole cuts, Ground meat, Poultry.

Seafood and whole cuts both cook to 145F, and the exam knows that looks ambiguous. Seafood goes above whole cuts. If a question puts those two in play, that is the ordering being tested.

Ready-to-eat food always goes on top. That rule holds even when the ready-to-eat item feels less risky than the raw one below it, because ready-to-eat food has no remaining kill step.

General storage rules

These are short, concrete, and heavily tested.

• Six inches off the floor. All food and supplies are stored at least 6 inches (15 cm) above the floor. It allows cleaning underneath, keeps mop splash out of the product, and removes pest harborage.
• Store food away from walls, for the same reasons.
• Chemicals are stored separately from food, and never above it. If a separate room is not available, chemicals go on a lower shelf, in their original labeled containers, never on the same shelf as food or food-contact items.
• Label working containers of chemicals with the common name of the product.
• Do not reuse single-use containers to store food. They were not built to be cleaned and they will not come clean.
• Store food in clean, food-grade, nonabsorbent containers with tight lids. Cardboard is not a food container, and it also harbors pests.
• Keep unwashed produce separated from ready-to-eat food.
• Do not overload coolers. Air has to circulate for a unit to hold temperature.
• Check the temperature of the food, not just the air. A cooler reading 40F on the door display can still have a warm pan in the back corner.

Cold storage numbers to hold onto: coolers keep TCS food at 41F (5C) or lower, and freezers are kept at a temperature that keeps food frozen solid, commonly 0F (-18C). Freezing stops growth. It does not kill anything.

Date marking

Ready-to-eat TCS food that will be held longer than 24 hours must be date marked, and it must be used or discarded within seven days when held at 41F (5C) or lower. The day of preparation or opening counts as day one.

Prepare chicken salad on Monday and Monday is day one, so the use-by date is the following Sunday. Open a commercial package of deli turkey on Thursday and the use-by date is the following Wednesday.

Three refinements the exam likes:

• If a manufacturer's use-by date falls before the seven-day mark, the manufacturer's date wins.
• Freezing pauses the clock. Prepare on Monday, freeze on Wednesday, and four days remain when the food is thawed.
• When ingredients with different dates are combined, the batch takes the oldest date.

Food Handler versus Manager: how deep to go

Food Handler candidates need FIFO by name and meaning, the cooler storage order, the six-inch rule, the rule that chemicals never go above food, and the basic idea of date marking. Questions are direct.

Manager candidates need all of that plus the reasoning behind the storage order, cold storage monitoring including checking food temperature rather than air temperature, the full date marking arithmetic with the freezing and combining rules, the prohibition on reusing single-use containers, separation of unwashed produce, and how storage controls become written procedures inside a food safety management system.

Practice set

1. What does FIFO stand for in food safety? A. Food In, Food Out B. First In, First Out C. Frozen In, Frozen Out D. Fresh Inventory, Fresh Output

2. Where should raw ground turkey be stored in a cooler that also holds coleslaw, salmon, and whole pork loin? A. Top shelf B. Second shelf C. Above the pork loin D. Bottom shelf

3. What principle determines cooler storage order? A. Alphabetical order B. Delivery date C. Minimum internal cooking temperature D. Container size

4. How far off the floor must food be stored? A. 2 inches B. 4 inches C. 6 inches D. 12 inches

5. A cook prepares tuna salad on Tuesday and holds it at 39F. What is the use-by date? A. Thursday B. The following Monday C. The following Tuesday D. The following Wednesday

6. A delivery of canned goods arrives. Where should it be shelved relative to the existing stock of the same item? A. In front of the older cans B. Behind or beneath the older cans C. In a separate area D. Wherever there is room

7. Cleaning chemicals may be stored: A. On a shelf above the prep table B. On the same shelf as food, if sealed C. In a separate area or on a shelf below food, in labeled original containers D. Anywhere in dry storage

8. A container of chicken salad prepared Monday is frozen on Wednesday and thawed the following week. How many days remain? A. 7 B. 5 C. 4 D. 0, it must be discarded

Answers

1. B. First In, First Out. A, C, and D are invented expansions.

2. D. Poultry cooks to 165F, the highest minimum internal temperature, so it goes on the bottom. A is for ready-to-eat food. B is the seafood position. C puts ground poultry above a whole cut that cooks to a lower temperature.

3. C. Minimum internal cooking temperature, lowest on top and highest on the bottom. A, B, and D have nothing to do with contamination risk.

4. C. Six inches, which allows cleaning and prevents splash and pest harborage. A, B, and D are not the standard.

5. B. Tuesday is day one, so seven days ends on the following Monday. A is far too early. C and D count from the day after preparation, which adds a day the rule does not allow.

6. B. New stock goes behind or beneath older stock so the oldest is used first. A defeats FIFO directly. C creates two inventories nobody rotates. D is how expired product ends up hidden at the back.

7. C. Separate area, or a shelf below food, in original labeled containers. A and B both risk a leak or spill reaching food. D ignores the separation rule entirely.

8. C. Monday, Tuesday, and Wednesday used three of the seven days before freezing, leaving four. A wrongly restarts the clock. B miscounts. D discards food that is still within its total.

This hub is study material for candidates preparing for ServSafe certification exams. It is not affiliated with, endorsed by, or connected to the National Restaurant Association Educational Foundation, and it does not certify anyone. Certification is issued only by the exam provider.