HOS-REST26-06 · Lesson 5 · 14 clock hours · lab
Receiving: Inspection, Temperature, and Documentation
Objective. Students will conduct a complete receiving inspection—verifying invoice accuracy, checking product temperatures with a calibrated thermometer, assessing quality against spec, and completing a receiving log—and correctly reject or accept each item.
⚠ Pending professional review
This lesson, its worked examples and its practice questions has not yet been verified by a certified food-safety manager and industry professional or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.
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Why Receiving Matters
Every food-safety and quality problem that enters your back door can end up on a guest's plate. Receiving is the point where you accept or reject what a supplier delivers, and a weak receiving process is one of the most common root causes of foodborne illness and food-cost overruns. A trained receiver checks three things on every delivery: invoice accuracy, product quality against your written spec, and food temperature. Missing any one of these creates risk.
Calibrating Your Thermometer Before You Start
A thermometer that reads incorrectly is worse than no thermometer at all—it gives you false confidence. Calibrate every thermometer at the start of each shift and any time it is dropped or exposed to extreme temperature changes.
Ice-point method (dial/bimetallic stemmed thermometers): Fill a container with crushed ice and add just enough cold water to create a slush. Insert the thermometer stem at least 2 inches into the slush without touching the sides or bottom. Wait 30 seconds until the needle stops moving. The reading must be 32 °F (0 °C). If it is not, use the calibration nut under the dial to adjust it while the stem is still in the ice bath, then record the result on your calibration log. The ice-point method is preferred for dial thermometers.
Boiling-point method (digital thermometers): Insert the probe into boiling water (at least 2 inches deep). At sea level the reading must be 212 °F (100 °C). At higher elevations, boiling point drops roughly 1 °F for every 540 feet above sea level—use the known local boiling point as your reference. Many digital thermometers cannot be field-adjusted; if the reading is off by more than ±2 °F, remove the thermometer from service and tag it for repair.
Thermometer preference for thin products: A thin digital stem thermometer (thermocouple or thermistor) responds faster and can read the temperature of thin items such as fish fillets accurately. A dial thermometer requires at least a 2-inch insertion depth and is less reliable for thin products.
Safety: Never leave a thermometer unattended in boiling water. Use heat-resistant gloves when working near steam. Sanitize thermometer probes before and after each use with an alcohol wipe or by immersing in sanitizer solution.
Receiving Process: Step by Step
1. Check the delivery at the door. Inspect the delivery truck. Refrigerated trucks must maintain 41 °F or below; frozen trucks must maintain 0 °F or below. A warm truck is grounds for heightened inspection or outright refusal.
2. Compare the invoice to the purchase order. Verify item name, brand, pack size, unit count, and price for every line. Discrepancies must be noted before you sign anything.
3. Check quality against your spec. Your purchase specification (spec) describes exactly what you ordered: grade, size, packaging condition, color, and any other quality standard. Compare each item to the spec. Look for torn or leaking packaging, off odors, incorrect color, signs of thawing and refreezing (ice crystals on frozen products, dried edges), and physical damage such as bruising on produce.
4. Take temperatures correctly.
- Proteins (beef, poultry, pork, fish): Insert the calibrated thermometer between two packages or into a fold of the product. For whole pieces, insert at least 2 inches into the thickest part, avoiding bone. Fresh fish must arrive at 41 °F or below.
- Packaged items and produce: Use an infrared (surface) thermometer for a quick non-contact check, or insert a stem thermometer between packages. Note that infrared only reads surface temperature.
- Dairy: Should arrive at 41 °F or below.
- Frozen goods: Should arrive at 0 °F or below with no signs of thawing.
5. Accept or reject each item. Any item that fails a temperature check, fails a quality check, or does not match the spec must be rejected. Do not let rejected items into your kitchen.
6. Handle the driver professionally. Clearly and calmly state which items you are rejecting and the specific reason (e.g., "The salmon arrived at 48 °F, which is above our 41 °F limit"). Ask the driver to note the rejection on the invoice, then both parties sign. Keep your copy.
Completing the Receiving Report
Every delivery must result in a completed receiving report (also called a receiving log). Include:
- Date, time, and supplier name
- Each item received, quantity, unit price, and extended total
- Temperature recorded for each refrigerated or frozen item
- Quality notes
- Items rejected: name, quantity, and specific written reason
- Corrected invoice total (subtract rejected items)
- Receiver's signature and driver's signature or notation of refusal to sign
This document protects the restaurant in billing disputes, supports your food-safety records, and provides data for tracking supplier performance over time.
Safety Points for the Lab
- Wash hands and put on gloves before handling raw proteins.
- Keep raw proteins away from produce and dairy on the receiving table.
- Sanitize all thermometer probes between products.
- Use caution around the ice bath (wet floors = slip hazard); place a non-slip mat under the container.
- If boiling water is used for calibration, wear heat-resistant gloves and keep others clear of steam.
Key terms8
Purchase specification (spec)A written description of the exact quality, grade, size, and packaging standards a restaurant requires for each product it orders; used as the benchmark during receiving inspection.
InvoiceThe supplier's itemized bill listing products delivered, quantities, and prices; must be verified against the purchase order before the receiver signs.
Ice-point calibrationA method of calibrating a thermometer by immersing its stem in an ice-water slush and adjusting the reading to 32 °F (0 °C); standard for dial/bimetallic stemmed thermometers.
Boiling-point calibrationA method of verifying thermometer accuracy by inserting the probe into boiling water and confirming the reading matches the known boiling point for that altitude.
Receiving log (receiving report)A written record completed for every delivery documenting quantities accepted, temperatures, quality notes, rejections with reasons, corrected invoice total, and required signatures.
Thermocouple/thermistor thermometerA fast-responding digital thermometer with a thin probe capable of accurately reading the temperature of thin food items such as fish fillets; preferred over dial thermometers for thin products.
Infrared thermometerA non-contact thermometer that measures surface temperature; useful for a quick check of packaged items but does not measure internal product temperature.
RejectThe formal refusal of a delivered item that does not meet temperature, quality, or specification standards; the item is returned to the driver and documented on the receiving log with a written reason.
Worked examples4
1. Your dial thermometer reads 35 °F in an ice-point bath. What do you do, and how do you adjust it?
- Confirm the ice-point bath is a proper slush of crushed ice and cold water—not just ice cubes.
- Keep the stem at least 2 inches in the slush, away from the sides and bottom, and wait 30 seconds for the needle to stabilize.
- The needle reads 35 °F; the correct reading must be 32 °F, so the thermometer is off by +3 °F, which exceeds the ±2 °F acceptable range.
- While the stem is still in the ice bath, use a wrench or calibration tool to turn the calibration nut under the dial until the needle reads exactly 32 °F.
- Record the original reading (35 °F), the action taken (adjusted), and the final reading (32 °F) on the calibration log along with the date, time, and your name.
Answer: Adjust the calibration nut to bring the reading to 32 °F while the stem is in the ice bath, then document the adjustment on the calibration log.
2. A delivery includes 20 lb of ground beef at $3.80/lb and 15 lb of salmon at $9.50/lb. The salmon arrives at 48 °F and is rejected. What is the corrected invoice total for this delivery?
- Calculate the ground beef total: 20 lb × $3.80 = $76.00.
- Calculate the original salmon total: 15 lb × $9.50 = $142.50.
- Original invoice total: $76.00 + $142.50 = $218.50.
- The salmon is rejected entirely, so subtract the salmon charge: $218.50 − $142.50 = $76.00.
- The corrected invoice total is $76.00 (ground beef only). Note the rejection reason on the receiving log: 'Salmon arrived at 48 °F, exceeds 41 °F maximum.'
Answer: Corrected invoice total = $76.00.
3. You receive a case of 24 individually packaged yogurt cups. The case shows no obvious damage, but you take an infrared surface temperature reading of 46 °F on the outside of the package. What is your next step, and why?
- Recognize that infrared thermometers measure surface temperature only, not internal product temperature; a warm outer surface could mean the interior is also warm.
- Insert a calibrated stem thermometer between packages or, if possible, open a package and insert the probe into the product to get an internal reading.
- Dairy products must arrive at 41 °F or below. If the internal temperature also exceeds 41 °F, reject the entire case.
- If the internal reading is at or below 41 °F, the surface reading may reflect ambient warehouse heat on the packaging; accept the product and document both temperature readings on the receiving log.
- Either way, record both the infrared reading and the stem thermometer reading on the receiving log and note your accept/reject decision with reasoning.
Answer: Follow up the infrared reading with a stem thermometer check of internal product temperature before making an accept/reject decision.
4. A digital thermometer reads 208 °F in boiling water at sea level. Is it within the acceptable range? If not, what action do you take?
- At sea level, water boils at 212 °F. The acceptable range is ±2 °F, so acceptable readings are 210 °F to 214 °F.
- The thermometer reads 208 °F, which is 4 °F below 212 °F—outside the ±2 °F acceptable range.
- Most digital thermometers cannot be field-adjusted with a calibration nut.
- Remove the thermometer from service, tag it 'Out of Service – Do Not Use,' and send it for repair or replacement.
- Record the out-of-range reading, the date, and the action taken on the calibration log.
Answer: The thermometer is out of acceptable range (208 °F vs. 212 °F required at sea level). Remove it from service, tag it, and arrange for repair or replacement.
In class: Calibrate a dial thermometer using the ice-point method and a digital thermometer using the boiling-point method; record calibration results on a temperature log and identify which thermometer type is preferred for thin products. · Process a simulated 10-item delivery in the kitchen lab: check each item against the purchase order and spec, take product temperatures (proper insertion technique for proteins, using infrared for packaged items), record results, and flag two intentionally out-of-spec items (an above-temperature fish fillet and a bruised produce item) for rejection. · Complete a receiving report that records accepted quantities, rejected items with documented reason, corrected invoice total, and required signatures; role-play a professional conversation with the 'driver' (played by another student) to refuse the rejected items.
Materials: Dial and digital stem thermometers, ice bath, calibration log forms, simulated delivery items (proteins, produce, dairy, dry goods), purchase order copies, receiving log forms, ServSafe Manager textbook (receiving and storage chapter)
Check: Observer checklist completed by instructor: thermometer calibrated correctly, all 10 item temps recorded within ±2°F of reference thermometer, both out-of-spec items correctly rejected with written reason, receiving log fully completed. All checklist items must be marked correct to pass.
Practice check8
Answer each question, then check it. Nothing is recorded; this is your own practice.
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