The Pack House Traceability Gap
Pack houses sit at the critical junction of the fresh produce supply chain: field-harvested product enters, passes through grading, packing, cooling, and staging, then exits as packed product moving to distributors and retailers. Every lot that passes through accumulates regulatory traceability obligations.
FDA’s Food Safety Modernization Act Section 204 requires that entities in the food supply chain for Food Traceability List (FTL) products maintain traceability records for Key Data Elements (KDEs) at Critical Tracking Events (CTEs) — and produce those records within 24 hours of an FDA request.
For fresh produce pack houses, the regulated CTEs include:
- Receiving: Field harvest lot received, with product identity, quantity, grower/field source, and receiving condition
- Transformation: Grading, sizing, packing — where received product is transformed into packed product lots, with the link between input lots and output packs
- Holding: Cold room storage with temperature records for the product while it’s at the facility
- Shipping: Outbound shipment with the packed lot identity and the first receiver destination
The documentation challenge: most pack houses have this information in multiple disconnected places. Receiving logs are on paper or in a commodity management system. Cold room temperatures print to a chart recorder. Outbound packing records are in a separate system or on paper labels. The 24-hour assembly of connected records is a manual research project.
ArgusIQ builds the connected traceability record at every step, making 24-hour FDA record production a report function rather than a manual research project.
The Lot Record in ArgusIQ
Every product lot that enters the pack house receives an ArgusIQ Asset Hub record. The record travels with the lot through every transformation:
Field receiving record:
- Lot identifier (harvest lot number, grower ID, field block)
- Product identity: commodity, variety, grade
- Quantity received: bins, weight, unit count
- Source: grower name, farm name, field identifier
- Receiving condition: visual assessment, temperature at receiving (measured by spot probe or IR thermometer, recorded against the lot record)
- Date/time of receiving
The receiving record is created at the receiving dock, by the receiving crew using the ArgusIQ mobile interface or a connected receiving terminal. It creates the FSMA 204 receiving CTE record with all required KDEs documented in structured form.
Packing transformation record:
- Which input lots (field receiving records) went into this packed lot
- Packing line, packing date, packing shift
- Output lot identifier (LGTIN or GS1 standard identifier, or internal lot code)
- Output quantity: cases, weight, units
- Packing configuration: pack type, container, label
The transformation record establishes the traceability link between field lots and packed lots — the connection that enables forward tracing and backward tracing.
Cold room holding record:
- Which packed lots are in which cold room
- Temperature monitoring: continuous time-series from ArgusIQ IoT Hub connected to the cold room’s refrigeration sensors
- Entry and exit timestamps
The holding record is the continuous temperature documentation that the FSMA 204 holding CTE requires — not a daily manual reading, but a continuous record with the full temperature history for every lot’s time in storage.
Outbound shipping record:
- Which packed lots are in this shipment
- First receiver: name, address, customer account
- Shipment date, carrier, seal number
- Temperature at loading (pre-cooling check)
Cold Room Monitoring: Condition, Not Just Temperature
Pack house cold rooms hold product at temperatures critical for both food safety and quality. For produce, temperature management affects both the regulatory compliance dimension (temperature excursions create FSMA 204 documentation events) and the quality dimension (temperature abuse reduces shelf life and increases loss at retail).
ArgusIQ IoT Hub connects to cold room refrigeration systems:
- Supply and return air temperature sensors in each room
- Product temperature sensors at representative positions within the room
- Refrigeration unit health monitoring: compressor current, condensing coil temperature, superheat
Excursion detection and documentation: When temperature rises above the cold room’s configured holding temperature threshold, ArgusIQ creates an excursion event record: start time, maximum temperature, duration, return to setpoint time, and the acknowledgment record (who responded, what was done). This event record becomes part of the FSMA 204 holding CTE documentation for every lot that was in the room during the excursion.
Refrigeration unit health: Cold room refrigeration failures during peak season are among the most costly events in pack house operations. ArgusIQ CMMS tracks refrigeration unit condition from performance data (supply/return temperature differential trends, compressor current vs. load), generating PM work orders before performance degradation becomes outright failure.
Throughput Tracking and Operations Visibility
Line Efficiency Monitoring
Pack house profitability depends on throughput: the rate at which product moves from receiving to packed output, measured in units per hour per packing line. Lines that run below designed throughput represent either a product issue (difficult product conditions requiring slower packing) or an operational issue (mechanical, labor, or setup problems).
ArgusIQ IoT Hub connects to packing line count sensors — optical counters at the end of each packing line that measure completed packs per minute. The throughput data flows into ArgusIQ Asset Hub against the packing line’s asset record.
Throughput baseline by product type: a line running bell peppers at design throughput looks different from the same line running cherry tomatoes. ArgusIQ maintains product-type throughput baselines and alerts when actual throughput falls below the baseline by more than the configured variance — indicating a condition that warrants supervisor attention.
Grading yield tracking: The ratio of packed product output to received product input is a grading yield metric: 85 cases of packable product from 100 units of received field product = 85% yield. Lower-than-expected yield may indicate product quality issues from the field, suboptimal grading settings, or packing waste.
ArgusIQ calculates grading yield from the lot records — received quantity from the field receiving record, packed quantity from the transformation record. The yield metric accumulates by grower, field, variety, and season — providing the data for grower performance analysis.
The 24-Hour FDA Record
When the FDA requests traceability records — which can happen during a foodborne illness investigation, an import alert, or a routine inspection — the pack house has 24 hours to produce the complete records.
ArgusIQ generates the FSMA 204 traceability record as a structured report:
Forward trace (from field to distribution): Given a field lot identifier, ArgusIQ produces the complete forward trace: which packing transformation events used this field lot, which packed lots were produced, which shipments included these packed lots, and who received them — with the temperature records for the holding period.
Backward trace (from distribution to field): Given a packed lot identifier (from a retailer recall notice or distributor complaint), ArgusIQ produces the complete backward trace: which transformation events produced this lot, which field receiving lots contributed to it, which growers and fields supplied the field lots.
The report is generated from the structured records in ArgusIQ Asset Hub — not from a manual assembly of receiving logs, cold room charts, and shipping documents. The 24-hour window is achievable.
Integration With Commodity Management Systems
Many pack houses run commodity management software (Eclipse, PMA Fresh, CoolR) for sales, inventory, and financial management. ArgusIQ integrates with these systems:
- Lot records created in ArgusIQ can push identifiers and quantities to the commodity management system for inventory and sales tracking
- Outbound shipments confirmed in the commodity management system update the ArgusIQ lot record with the first receiver information
- Grading yield data from ArgusIQ feeds back to the commodity management system for grower accounting
The integration avoids duplicate data entry while maintaining ArgusIQ as the system of record for the operational and traceability data the commodity management system doesn’t track.
Talk to our team about ArgusIQ for your pack house operation.