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Food industry · HACCP · NSF

Listeria in the floor
causes product recall
and downstream liability.

Listeria monocytogenes and Salmonella spp. live in the biofilm of floor drains in meat, dairy, and fish processing plants. Environmental swab plans find them before they end up in the product — but something must be done about it systematically. Green Drain™ eliminates the P-trap as a reservoir.

HACCP Int. RG-04NSF/ANSI 2EN 1253BRC/IFS audit−40 °C / +100 °C
0
Standing water
99.9 %
Aerosol blockade
5 years
Life
Without
No chemistry
Problem & solution

The plant has more P-traps but the operator.

Dairy or meat production has dozens to hundreds of floor drains. The CIP/SIP regime doesn't reach them all. A HACCP plan is a legal requirement and the sanitary inspectorate checks that it is applied — and the BRC/IFS auditor, during the annual audit, pays special attention to environmental monitoring.

Without Green Drain™

  • Listeria monocytogenes and Pseudomonas colonise P-trap biofilm — chlorine-resistant and biofilm-forming strains
  • Aerosolization during floor washing and sanitation — pathogens reach production surfaces.
  • Positive environmental swab triggers an investigation, retest, and potential recall.
  • EU sanitary inspectors are demanding proven preventive measures.
  • BRC Global Standard for Food Safety and IFS Food require documentation of drain control.

With Green Drain™

  • No standing water in which Listeria, Pseudomonas, and Salmonella thrive.
  • Resistant to CIP/SIP regimes, NaOH up to 5 %, HNO₃, peracetic acid, quaternary amines
  • Resistant to temperatures from −40 °C (freezers) to +100 °C (hot CIP)
  • Material compatible with EU 1935/2004 and EU 10/2011 (indirect food contact)
  • Listed under the HACCP International programme (RG-04) as a drain control measure
EU regulatory framework

Food safety is Legal obligation.

The general framework is set by Regulation (EC) No 178/2002 on the general principles of food law, while the obligation to apply procedures based on HACCP principles is laid down by Regulation (EC) No 852/2004 on the hygiene of foodstuffs. Food contact materials are governed by Regulation (EC) No 1935/2004 (framework) and Regulation (EU) No 10/2011 (plastics). BRC and IFS are not legislation but private industry standards required by major buyers and exporters in the EU.

EU 178/2002
Basic Food Safety Regulation (HACCP mandatory)
EU 1935/2004
Framework Regulation on materials in contact with food
EU 10/2011
Plastic in contact with food — specific limit values
BRC / IFS
Industry audits call for environmental hygiene monitoring.
HACCP International
Listed under RG-04 for floor-drain seals
−40 / +100 °C
Seal temperature range (cold to warm sanitation)
Data Sources and Regulatory Framework (2024–2025 data)

Statistical data were taken from official sources: State Statistical Office (data.dzs.hr) Croatian Institute of Public Health (hzjz.hr), Ministry of Labor, Pension System, Family and Social Policy (mrosp.gov.hr), Agency for Science and Higher Education (azvo.hr), Ministry of Tourism and Sports (mint.gov.hr). Regulatory framework: EUR-Lex for EU directives and regulations — Regulation (EU) 2017/745 (MDR), Regulation (EC) No 178/2002 (general principles of food law), Regulation (EC) No 852/2004 (food hygiene — HACCP obligation), Regulation (EC) No 1935/2004 and Regulation (EU) No 10/2011 (food contact materials), Regulation (EU) No 528/2012 (BPR), Directive 2014/34/EU (ATEX). Standards: EN 1253-1 (floor P-traps, water seal ≥50 mm), EN 1253 Parts 6/7/8 (gullies with a water seal below 50 mm, with mechanical closure, and combined types; 2023 editions), ASSE 1072-2020 (floor drain trap seal protection devices) and NSF/ANSI 2 (food equipment). HACCP International RG-04 is a private certification programme operated by HACCP International, not an official certification issued by a public authority. Tourism data taken from the DZS publication for H1 2025, healthcare data from the HZJZ report 2024, data for education from DZS publications for the 2023/2024 and 2024/2025 school years, data for nursing homes from the MROSP report, and announcements of EU-funded construction in 2025. Revision date: May 2026.

Implementation

The whole plant, phase by phase.

Large facilities install them on each line during scheduled annual maintenance. One week of coordinated work with the technical service.

01

Mapping

The technician maps all drains by line: intake, processing, packaging, and dispatch.

02

Specification

Written specification with sizes, certificates, and SDS for the QA department.

03

Validation test

Environmental swab pre- and post-test on 10 drains — one month of monitoring.

04

Roll-out

By line in weekly cleaning cycles — without production downtime.

Model Recommendation

Recommended sizes by production line.

The meat, dairy, confectionery, and bakery industries in Croatia operate according to BRC and IFS standards for export. A typical facility has 4–5 different sizes of P-traps, depending on the line. Central gully channels go up to 150–156 mm. Freezers at -25 to -40°C require resistance to thermal shock.

Green Drain™ Recommended for your industry.

  • Processing line (cutting, grinding, mixing)GD 3. Standard for most food processing plants in HR.
  • Cold storage and shock freezer (−25 to −40 °C)GD 3 or GD 4Silicone won't crack when frozen.
  • Central gully channels between the linesGD 5 or GD 6Maximum flow rate during full-flush sanitization.
  • Sanitation zone (CIP/SIP)GD 4NaOH up to 5 %, HNO₃ up to 3 %, acetic acid — compatible.
💬 Not sure of the exact size? Send us a photo of your sink drain — our technical team will respond with a written recommendation within the same business day, free of charge.
Check out Green Drain™ → Request a quote
GD 2
50–58 mm · staff sanitation
GD 3
75–85 mm · processing line
GD 3–3.5
80–89 mm · packaging, receipt
GD 4
102–110 mm · cold box, CIP
GD 5
120–135 mm · central groove
GD 6
150–156 mm · main gully channel
Questions

What we get asked most.

Will this pass a BRC/IFS audit?

Auditors are requesting documentation of active drain control as part of the environmental hygiene monitoring programme. Listing under the HACCP International programme (RG-04), together with our standard operating procedure template, covers that requirement.

Resistance to CIP/SIP cycles?

Silicone is resistant to NaOH up to 5 %, HNO₃ up to 3 %, peracetic acid up to 2 %, and quaternary ammonium compounds. It can withstand continuous thermal exposure up to 100 °C and short-term exposure up to 120 °C.

Can we get a food-contact certificate?

The material is compliant with EU 1935/2004 and EU 10/2011 for indirect food contact via the drainage system. We will provide the SDS and the Declaration of Conformity upon request.

Complete solution

Three products.
One protection portfolio.

Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (drain unblocking).

Ready for Free audit?

We come to the site, map the drains, and provide a written recommendation — no cost, no obligation.