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For commercially processed ready-to-eat TCS food, the day the container is opened counts as Day 1 and the seven-day clock runs from there, but the marked date may never exceed the manufacturer's use-by date when that date was set for food safety. Here the manufacturer's Friday date is earlier, so Friday governs.

Hard cheeses such as cheddar, parmesan, and romano, along with semi-soft cheeses, cultured dairy, commercial deli salads, preserved fish, dry fermented sausage, and salt-cured products, are exempt from date marking when packaged by an inspected food processing plant. Sliced deli meat and food prepared in house are not.

Ready-to-eat TCS food in a container or package that does not bear a date or day must be discarded, along with food that exceeds its time and temperature combination or is marked with a date that exceeds it. Backdating with today's date would restart a clock that has already been running for an unknown number of days.

A reduced-oxygen package must be prominently labeled to maintain the food at 41°F or below and to discard or consume it within 30 calendar days of packaging. The oxygen-free environment holds off spoilage organisms that would normally warn a customer, while Clostridium botulinum and Listeria can still grow.

Shell eggs must be received clean and sound and may not exceed the restricted egg tolerances for United States Consumer Grade B. A cracked shell lets Salmonella through the only barrier the egg has, and no kitchen process makes a leaking egg comply with a receiving requirement.

Shellstock must arrive with a tag or label bearing the identity of the original shipper, including the certification number of the harvester or dealer, so the lot can be traced to an approved harvest area. Price paperwork and informal notes carry none of the information an illness investigation needs.

Raw animal foods are ordered by their minimum internal cooking temperature, with the lowest temperature on top. Whole pork chops cook to 145°F and ground beef to 155°F, so the chops sit above the ground beef. Combining them in one pan defeats the separation rule, and no food is stored on the floor.

An ice scoop is stored in a clean, protected location outside the bin, because a scoop left in the ice collects hand contact and dust and a handle buried in the ice contaminates every cube it touches. The machine lid and an apron are neither clean nor protected.

After ice is used to cool the exterior surfaces of food, packaged foods such as canned beverages, or equipment coils, it may not be used as food. The can exteriors carry whatever was on the warehouse floor and the delivery truck, and rinsing or refreezing does nothing about that.

Rejected product is separated from accepted food, the reason for the rejection is recorded on the invoice or receiving document, and the delivery driver signs it before taking the product back. Storing rejected chicken in the walk-in risks someone using it, and throwing it away gives up the credit and the record.

Damaged, spoiled, or recalled products held for credit, redemption, or return must be segregated and held in designated areas separated from food, equipment, utensils, linens, and single-service articles. A bottom shelf or a taped note leaves the product in circulation where a cook can grab it during a rush.

A food labeled frozen and shipped frozen by a food processing plant must be received frozen, and large ice crystals with soft product are evidence of thawing and refreezing. Refreezing damages quality and hides how long the product spent in the danger zone, which no later cooking step can measure.

Reduced-oxygen packaging removes the oxygen that normally keeps Clostridium botulinum in check, so the fish must be removed from the package before or immediately as it thaws under refrigeration. Texture, air flow, and labeling are quality and record concerns, not the reason for the warning.

An approved supplier is one that has been inspected and meets applicable laws, and reviewing recent inspection or third-party audit reports is how a manager verifies that rather than assuming it. Price, delivery frequency, and longevity say nothing about whether the cold chain and the harvest records hold up.

Organized purchase records and lot information let an operation determine within minutes whether it has a recalled product, remove it from inventory, and segregate it for credit. Food costing is a business use of the same paperwork, and a HACCP plan is a separate document with its own required contents.

TCS food that was cooked to a required temperature and is received hot must be at 135°F or above. Anything below that has been sitting in the danger zone somewhere between the commissary and the back door, and the receiving operation has no way to know for how long.

Food must be stored in a clean, dry location, where it is not exposed to splash or dust, and at least 6 inches above the floor. Cases stored lower cannot be cleaned under and give pests a harborage, and stock pushed tight against a wall hides the droppings and gnaw marks that reveal an infestation.