What PT4 Covers
PT4 disinfectants are biocidal products regulated under GB BPR for food and feed area hygiene. Permitted uses can include equipment, containers, utensils, surfaces and pipework in food production, processing, catering and beverage manufacturing.
The intended use must be supported by the product's applicable GB BPR position and label. Experimental food-contact or wash-water research does not itself establish permission for direct produce treatment, residue compliance or a shelf-life claim.
Key Applications
Food Processing Equipment
Disinfection of conveyors, tanks, and processing lines to support food safety management systems.
Dairy & Beverage Production
CIP and surface disinfection for dairy plants, breweries, and beverage manufacturing.
Produce Wash-Water Evidence
Review matrix effects and regulatory scope before considering any direct produce or process-water use.
Catering & Food Preparation
Surface and equipment hygiene in kitchens, catering, and food preparation areas.
Why Chlorine Dioxide for PT4?
Chlorine dioxide is used in some food and feed area hygiene programmes where the product label permits. Performance depends on cleaning, soil load, surface, concentration, contact time and temperature. It forms no chloramines and generally forms much less THM and HAA than chlorination, while chlorite, chlorate and other by-products require control through label dosing, any specified rinse and appropriate verification.
Label-Defined Efficacy
Use organism claims only where they are supported for the product, application method and label conditions.
Managed Residues and By-Products
No surfactant film or chloramines. Chlorite, chlorate and other by-products must be controlled under the label and food-safety plan.
CIP Applications
May be suitable for clean-in-place disinfection where the specific product label permits the use and its conditions are met.
Process-Specific Performance
Verify performance under the site's pH, temperature, soil load, contact time and hydraulic conditions.
Matrix-Aware Validation
Validate in the real food-area matrix because organic matter and suspended solids can limit an oxidant's effect.
HACCP and GB BPR Checks
Document the hygiene step in the food-safety plan and verify the product's applicable GB BPR position and label.
Dosing & Compliance Notes
Typical chlorine dioxide (ClO₂) dose and residual figures below are indicative starting points. Always confirm site-specific dosing with a competent water treatment adviser.
| Application | Typical ClO₂ dose / residual | Key standard |
|---|---|---|
| CIP final rinse disinfection | Follow the product label, including contact time and any rinse | PT4 where label permits |
| Hard surface disinfection | Apply per product dilution, contact then rinse | PT4 where label permits |
| Equipment & container hygiene | Apply per product dilution to cleaned surfaces | PT4 where label permits |
This table gives no produce-wash direction. Follow the product label for permitted PT4 equipment and surface uses, and confirm contact time, temperature and any required rinse with the food-safety team.
BPR Compliance
All ChloroKlean PT4 products comply with UK GB BPR and EU Biocidal Products Regulation requirements. Safety data sheets and technical data sheets are available on request for every product.
Related Resources
Frequently Asked Questions
Need PT4 Food Hygiene Solutions?
Contact our team to confirm the intended PT4 use, applicable GB BPR position and label conditions for your food-processing or beverage application.