Ensure hospital, clinic, and long-term care kitchens meet sanitation compliance with Indigo® Quat 400ppm test strips. Verify surfaces and utensils are safe, accurate down to 0–400 ppm, for HACCP and food safety inspections.
In healthcare settings, food safety and infection control are inseparable. Hospitals, clinics, and long-term care facilities must balance patient care with strict sanitation of kitchens, dining areas, and equipment. Indigo® 400ppm quat test strips help staff quickly verify that sanitizing solutions meet required strength without leaving harmful residues. Consistent monitoring protects vulnerable populations: patients with weakened immunity, seniors in nursing homes, staff who handle high volumes of meals daily; from outbreaks of pathogens such as Listeria monocytogenes, Clostridium difficile, and norovirus.
Best Practices for Hospital, Clinic & Long-Term Care Kitchens
Sanitizer Verification: Use Indigo® 400ppm quat test strips to confirm food-contact surfaces meet 200–400 ppm ranges required for healthcare kitchens.
Daily Line Checks: Test sanitizer buckets and wipe cloth stations at every shift change to prevent lapses in patient and staff food safety.
Cross-Contamination Prevention: Monitor separate prep areas for therapeutic, allergen-free, and immune-compromised patient meals.
Audit-Ready Records: Maintain logs of quat verification for Joint Commission, local health authorities, and HACCP/ISO inspections.
Equipment Focus:Pay special attention to blender jars, feeding utensils, and specialty prep equipment for liquid/soft diets.
Staff Training: Educate dietary teams and foodservice staff on the importance of sanitizer strength for patient safety, especially in oncology, transplant, and geriatric units.
Proactive Compliance: Regularly calibrate and replace sanitizer dispensers to ensure accuracy between inspections.
Related information or images
400ppm QAC Test Strips Foodservice/Sanitation
Schools-Daycare
Transportation Foodservice
Catering, Mobile Food Vendors
Restaurants & Foodservice
White Rice Processing
Specifications
Temperature and QAC strips reading relationship
Temperature vs ppm results for commercial formulations of quaternary amine sanitizers/disinfectants from 20 to 60oC (68-140F).
50, 100 ppm read~ 1/2 color square higher; 200, 400 ppm read 1 color square higher
55/131
Readings 1 color square higher across whole range
60/140
Readings 1 color square higher across whole range
Dip strip for 1-2 seconds & get readings in 10 seconds at 0-100-200-400 ppm for quaternary ammonium disinfectant concentration. Read strip results immediately. If you wait the 30 seconds needed for some other strips you will get a reading that is too high.
Indigo® test strips have a guaranteed minimum 3 year shelf life but are stored in desiccant lined vials so actual shelf life can be 5+ years.
They work wonderfully, was so happy to finally solve my sanitizer testing problems and to use hot water is great as well.
— Cindy
— Indigo:
Thanks for letting us know your experience with hot water. The chemist who designed the strips even provided us with instructions on what to expect when using hot water with quats.
2018-01-09
Great product as always and excellent service.
— john
2017-09-20
Excellent product- temperature range is far more liberal and fits our needs. State surveyor recommended! Down side is cost may be a factor considering old strips are provided for free from our vendor.
— Brett Anderson
— Indigo:
If you are using old strips, be careful as they may not be accurate. We in fact guarantee ours for 3 years minimum.Â
2017-08-08
The order came very quickly and is producing the results we hoped for when ordering this product
Thanks for noting our prices. Our discounts start at just 2 it costs the same to as 1.