What is the wash solution temperature for a single tank, stationary rack, single-temperature machine?

• A. 120 degrees F
• B. 150 degrees F
• C. 165 degrees F
• D. 180 degrees F

Answer: (C)

In this machine type, cleaning and sanitizing are achieved with a single water temperature during the wash cycle. The wash water is heated to 165°F, which is high enough to sanitize the dishes as they cycle through the wash, since there isn’t a separate final rinse with a different temperature.

Temperatures like 120°F are too cool to sanitize effectively. 150°F is below the standard for heat sanitizing in this setup, and 180°F is typically the final rinse temperature for other high-temperature machines rather than the wash temperature for a single-tank, single-temperature unit. So 165°F is the correct wash temperature for a single-tank, stationary rack, single-temperature machine.