What is the minimum water temperature for the wash step in the three sink method?

What is the minimum water temperature for the wash step in the three sink method?

• A. 75 degrees F
• B. 90 degrees F
• C. 110 degrees F
• D. 140 degrees F

Answer: (C)

In the three-sink method, the wash water needs to be hot enough for the detergent to work effectively and to help lift grease and soils from the dishes. The minimum temperature for the wash step is 110°F. At this temperature, cleaning agents emulsify fats and soils, making them easier to rinse away in the next sink. If the wash water is cooler, soils and bacteria can remain, even with detergent. Temperatures like 75°F or 90°F are too cool to activate the cleaning action, and 140°F is hotter than necessary for washing and can increase risk of burns or damage. So 110°F hits the right balance for effective cleaning in the wash stage.

In the three-sink method, the wash water needs to be hot enough for the detergent to work effectively and to help lift grease and soils from the dishes. The minimum temperature for the wash step is 110°F. At this temperature, cleaning agents emulsify fats and soils, making them easier to rinse away in the next sink. If the wash water is cooler, soils and bacteria can remain, even with detergent. Temperatures like 75°F or 90°F are too cool to activate the cleaning action, and 140°F is hotter than necessary for washing and can increase risk of burns or damage. So 110°F hits the right balance for effective cleaning in the wash stage.