An ice pack touches product packaging, the container floor and workers' hands. Mixing returned packs into clean stock carries soil from an earlier load to the next shipment, so a cleaning plan covers segregation on return and the conditions for reuse as well as washing.
Identify the model and the shell first. Identify the shell material, the model and the closures. The shell of GEBHARDT plates is food-safe polyethylene and the filling a non-toxic mixture of salt and water; a thin film pouch and a rigid plastic plate, however, may not tolerate the same brushing, hot water or chemical. Before washing, look for leaks, punctures, cracks and opened seams, and do not wash a damaged pack together with intact ones.
Cleaning and disinfection are separate steps
Cleaning removes visible soil and residue. Where disinfection is needed, concentration, temperature, contact time and rinsing follow the instructions for the surface and the chemical; more chemical or hotter water does not give a better result and brings a risk of shell damage and residue. Section 6 of the Codex hygiene guidance hosted by FAO likewise treats cleaning, disinfection where necessary, the chemical's instructions for use and effectiveness monitoring separately.
| Stage | What to check | Next step |
|---|---|---|
| Return and initial inspection | Model, soil, leakage and shell | Separate damaged or unidentified packs |
| Cleaning | Compatible method, visible soil and residue | Complete the defined cleaning process |
| Disinfection if required | Concentration, temperature and contact time | Apply the specified rinse requirement |
| Final inspection and drying | Surface, seams, residue and drying criterion | Check acceptance conditions |
| Clean stock | Clean rack, separate container, process status | Prevent mixing with dirty returns |
A damaged pack does not come back. A cracked, punctured, leaking or permanently swollen pack does not return to circulation because it was cleaned. A clean appearance is not proof of microbiological safety, and freezing or frost on the surface is not disinfection. Keep the damaged pack, the product it touched and the contaminated container apart under the site's incident procedure.
Being carried beside food does not make equipment a direct food-contact surface, but leakage and cross-contamination risk still call for control in the clean flow. One colour code is not enough for raw goods, ready-to-eat food and loads of different risk classes; colour and lot labels help separate the flows, and which group went through which cleaning and release step shows in the ice-pack labelling and lot-tracking record.
Drying and the container
Drying time depends on surface shape, seams and airflow; a fixed fifteen minutes does not show that every pack is dry. Before stacking or moving packs to the freezer, see that the surface and seams are dry.
If the pack is clean but the lid gasket, inner surface, rack or retainer is dirty, the flow is not clean; put the container into the same cycle. GEBHARDT's Isotec TBX can be cleaned by hand, with a high-pressure washer or in an automatic wash line, and water does not enter the insulation layer. Do not treat aluminium, steel, plastic and coated surfaces with one chemical and one temperature. Build the wash record around model, cause of soiling, method applied and inspection result: a returned batch exposed to leaking raw-meat packaging does not pass the same acceptance as one that merely looks clean on the outside.
