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Characteristics of Sanitizers

Characteristics Steam Chlorine Iodophor QUATS* AAS**
Gram-positive bacteria Best Good Good Good Good
Gram-negative bacteria Best Good Good Poor Fair
Spores Good Good Poor Fair Fair
Yeasts and molds Best Good Good Fair Poor
Bacteriophage Best Good Fair Poor Poor
Optimum pH N/A 4-5 3 10 2-2.5
Penetration Poor Good Poor Good Excellent
Corrosive No Yes Slight No Slight
Irritation N/A Yes No No Yes
Hard water affects No No Slight Yes/No Slight
Shelf-life N/A Short Long Long Long
Organic matter affects No Yes Slight Low Slight
Stable in 140°F H2O N/A No No Yes Yes
Leaves residue No No Yes Yes Yes
Flavor/odor No Yes Yes No No
Ease of use Poor Excellent Excellent Foam Foam
Use with detergent No No/yes Yes No/yes No
Maximum use by FDA/USDA None 200 ppm*** 25 ppm**** 200 ppm***** 200-400 ppm
Cost High Low Moderate Moderate Moderate
Where to use Equipment Equipment, floors, walls Rubber, plastic crates Aluminum, walls, floors Stainless steel, CIP

*Quaternary ammonium compounds.
**Acid anionic surfactants.
***Nonfood contact use on concrete floors (1000-5000 ppm), conveyor belts (300-500 ppm), fogging with 800-1000 ppm, wooden crates (1000 ppm).
****Nonfood contact use on concrete floors (500-800 ppm).
*****Nonfood contact use on cooler walls (500-800 ppm), concrete floors (500-800 ppm).

 

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