What is the approved sanitizer concentration for the Electro Freeze shake machine?

• A. 5-10 ppm
• B. 50-100 ppm
• C. 1-5 ppm
• D. 500-1000 ppm

Answer: (B)

Sanitizer concentration is the key idea here: you need a level that reliably kills germs on surfaces that contact food, but stays safe for the machine and the product. For the Electro Freeze shake machine, the approved range is 50–100 parts per million. This level is commonly recommended for chlorine-based sanitizers used in food-service equipment, providing effective disinfection while avoiding excessive residue or damage to equipment if the sanitizer is properly drained and allowed to air dry. Values below this range may not disinfect effectively, while much higher concentrations can cause corrosion, off-flavors, or safety concerns. Always verify with the machine’s manual, use properly calibrated test strips to confirm the concentration, and ensure the sanitizer contact time meets the guidelines.