Food Safety & CIP Sanitation Guidelines for Fruit & Vegetable Processing Lines

Hygienic Design & Sanitation Standards in Commercial Food Engineering

Cross-contamination and allergen retention represent the greatest operational risks in commercial food processing. Modern equipment design must adhere strictly to EHEDG (European Hygienic Engineering & Design Group) and 3-A Sanitary Standards.

Q1: What structural design rules prevent bacterial trap points in processing machinery?

All frames and tanks fabricated by HADOF follow sanitary food engineering fundamentals: continuous TIG welding seams ground flat to Ra <= 0.8um, self-draining sloped tank floors, and stand-off component mounting preventing water entrapment.

Q2: What is the recommended 5-Step CIP Procedure for Washing Lines?

1. Step 1 – Coarse Pre-Rinse: Flush all tanks and belts with 40–50°C clean water for 5–8 minutes.
2. Step 2 – Alkaline Detergent Wash: Recirculate 1.0%–1.5% NaOH solution at 65–70°C for 15 minutes.
3. Step 3 – Intermediate Water Rinse: Flush with potable water until pH returns to neutral.
4. Step 4 – Acid Descaling Wash: Circulate 0.5%–1.0% Nitric or Phosphoric acid at 55–60°C for 10 minutes.
5. Step 5 – Final Sanitization: Recirculate peracetic acid (150–200 ppm) for 5 minutes prior to startup.