Three records from a cold floor: a room that crossed its ceiling, a driver who has to sign the slip already open, and a handover that names the cage.
When Room B2 crosses the frozen ceiling, the clerk writes one slip.
On a frozen floor the number that matters is the ceiling for that lot, not the average for the week. At 00:10 on a berry night, probe 4 in Room B2 read -16.2°C. The lot on the slip, BR-2291, was supposed to stay at or below -18.0°C. Eleven minutes is long enough for a clerk to hope the door was only open for a count. It is also long enough for a receiver to reject the pallets later and point at a gap in the night. ModestGram is the subscription the clerk uses at that minute. The exceedance becomes a quarantine slip before anyone calls the room fine.
The older habit is a grease pencil on the door and a radio call to the supervisor, who is already on another row of the roster. By 06:00 the pencil is smudged, the radio note is a different temperature, and the pallets have moved one cage to the left because someone needed the space. The morning supervisor then releases what they can see, which is a room that has come back to the ceiling. The lot that actually spiked is no longer the lot standing in front of the probe.
Slip Q-184 fixes the lot to the event. It names Room B2, probe 4, the limit, the reading, the clock time, the goods (frozen mixed berries), the pallet count the clerk could see (18), and the cage they were moved into (Cage 2, rows 4 through 6). N. Hale signs the open line at 00:12. The slip does not ask Hale to decide the biology of a berry. It asks Hale to record the isolation so the next person cannot miss it.
Opening the slip during the exceedance matters because the truck is a separate row on the same board. Reefer 441 is already on the night roster with an arrival in the small hours. If the clerk waits for a quiet hour to type the spike into a sheet the driver never sees, the driver will be offered a signature on a clean bill. The held fruit and the arriving trailer then live in two stories. The dispatcher watching the fleet cannot tell which story the seal belongs to.
Hale does not average the spike into the night's mean, and does not open a second document for the office. One slip is the quarantine record. It stays in process until a driver accepts or refuses it and until a supervisor signs a release or leaves the hold in the pass-down. That is the whole job of the board on a night when the room leaves its limit.
The driver signs the slip that is already open.
Reefer 441 reaches the gate at 02:40 with a seal that still matches the dispatch sheet. The driver has a window, a unit number, and a wish to get off the yard. The clerk has an open slip, Q-184, because Room B2 went above the frozen ceiling at 00:10 and the berries in lot BR-2291 are sitting in Cage 2. ModestGram puts the driver on that slip. The arrival is not a new form with a new number.
Two pieces of paper are how a refused load sneaks into a room. The driver signs an accept on a gate sheet. The clerk's hold stays on a clipboard that the morning shift files under night notes. Both signatures are real. They describe different decisions. A receiver who audits the week will find an accept and a hold for the same lot and will not know which one the building followed. The dispatcher who sent the truck hears about the dispute only after the pallets are in the racking.
On the slip the driver's choice is narrow on purpose. Accept means the load is taken into the room named on the slip, with the hold still visible to the supervisor. Refuse means the seal is not accepted and the pallets do not join the cage. A short note can say the return air was warm or the door seal was soft. The note does not create a third outcome. Dispatchers read accept or refuse without calling the clerk off the floor to translate a code.
The mark is written once, by the driver, at the gate, on the slip the clerk already opened. The clerk does not retype it. The supervisor sees the same line when deciding a release. If the driver has not arrived, the line stays empty and the queue still says hold. An empty line is a state a pass-down can repeat without inventing a signature that did not happen.
A refuse does not erase the exceedance and does not pretend the trailer was never warm. The reading, the limit, and the clock time stay on Q-184. What changes is the location of the goods: they are not in Cage 2, because the seal was refused. The slip is the reason a later count of the room will not find those pallets, and the reason the fleet desk does not mark the delivery as clean. The same record serves the supervisor inside and the dispatcher outside.
A pass-down that keeps the morning from releasing Cage 2.
At 06:00 M. Ortiz takes the floor from N. Hale. The verbal pass-down in a lot of cold stores is one sentence in a doorway: the berries are odd, leave Cage 2 alone. That sentence fails when Ortiz is pulled to a door alarm in Room A1 before anything else. Cage 2 then looks like any other cage of frozen fruit that has come back to temperature. A release signed in a hurry is how a held lot leaves the building as if the night never happened.
The pass-down inside ModestGram is a written record at the end of the staffed shift, not a side conversation. Hale's note for Ortiz names the slip (Q-184), the lot (BR-2291), the cage and rows, and the fact that the driver on Reefer 441 has not signed. It tells the morning not to release that fruit. It also names the pork lot PK-104 on slip Q-179, which was refused at the seal and has already left the yard, so nobody waits for those pallets or writes them into the room.
The same note carries Q-176, the cheese in Room A1. That room spiked while a door was open, and the probe is back inside the limit. On this desk a return to range is not itself a release. Ortiz may release Q-176 only by signing the slip. The pass-down says so in plain words. The product does not treat a probe that has recovered as a cleared lot. It leaves a signature line with a name on it.
Hale also writes that probe 4's battery was swapped at 03:20 and that another swap is not due on the morning shift. A dead probe is a quiet way to lose an exceedance. If the morning sees a blank reading and treats blank as cold enough, Cage 2 becomes invisible. Putting the battery on the handover keeps the equipment row and the people row in one place. Ortiz does not have to find a side notebook to know whether the sensor is alive.
When Ortiz signs in, the pass-down is the first record on the board for the new shift. It is short because the slips are still there. It does not replace Q-184. It points at it. Supervisors subscribe to this because the dangerous minute is the handover, not only the minute the probe first crosses the line. The crossing already has a slip. The handover is what stops the next person from undoing it with a signature.