Final answer:
At closing time, you should use special dishwasher detergent, scrape off food from dishes before placing them in the dishwasher, and turn off the dishwasher after putting clean dishes away.Therefore, the correct answer is option 4.
Step-by-step explanation:
When closing the back of house (BOH) in a restaurant, certain steps need to be followed regarding the use and maintenance of the dishwasher. Firstly, the user must ensure that they use a special detergent designed for dishwasher use. After scraping leftover food from the dishes, they should be placed inside the dishwasher such that the surface of all dishes is exposed to the water flow. Once all the dishes are clean and the dishwasher's cycle has completed, the correct procedure to follow when closing would be to:
- Empty the dishwasher of any dishes and utensils.
- Ensure that the dishes are dried and put away in their respective places.
- Turn off the dishwasher to conserve energy and maintain the equipment's lifespan.
Therefore, the correct answer is option 4.) Put everything away and leave it off.