Slaughter & cutting plants

At the slaughterhouse, material is opened that was previously largely protected microbially. Once a muscle surface is created, colonisation begins — and every contact point along the processing path is a potential vector. For good reason, Regulation (EC) 853/2004 requires particularly strict cleaning and disinfection protocols here: after every production period, on product changeover and before shift start.

The surface properties of the containers used largely determine whether these protocols are actually effective. Ra ≤ 0.8 µm, radii > 3 mm in all inside corners, 3° drainage slope — those are not nice-to-have features, they are the structural preconditions for preventing Listeria biofilms from establishing in the first place.

Rotational moulding forms those geometries at the factory. No retrofitted welds, no pressed-in edges, no inlays that loosen over long-term operation. After 10+ years of service, our containers show the same swab-test cleaning results as on day one.

Standard cleaning routine in a cutting plant: pre-rinse with water, foam cleaning with alkaline cleaner (NaOH 2–4 %, 55–65 °C), 15–20 min dwell, post-rinse, optional acid clean against mineral deposits (HNO₃ 1–2 %), final disinfection with peracetic acid or chlorine dioxide. All that multiple times per day, year after year.

Premium HDPE endures this regime without reaction: swelling < 0.5 %, no permeation, no measurable surface change. Stainless steel welds, by contrast, show pitting after 3–5 years at exactly the spots where chloride residues concentrate — typically where spray shadows make post-rinsing unreliable.

The difference becomes visible under low-light inspection with methylene blue: Rotogal PE containers show an even, undamaged surface after 10 years — stainless steel containers from the same production cohort are peppered with micropitting and compromised for cleaning.

Auditors under IFS Food 8 or BRCGS Food Safety 9 inspect three core topics on containers: labelling (DoC per EU 1935/2004 available?), surface condition (no cracks, no deformation, no foreign-body risk) and cleaning validation (ATP values or swab results documented?).

Rotogal supplies a declaration of conformity for every batch, including FDA reference and EU 10/2011 SML evidence. On request you receive a template for internal container master data — serial number, in-service date, planned re-certification, assignment to product area. That turns the audit visit into a showcase rather than an evidence hunt.

If a container does go out of spec — through forklift damage or after its service life — we support proper decommissioning, document the swap and take the old material back for sorted recycling. A closed material loop that also looks clean in the sustainability report.