Cleaning And Sanitizing Flashcards
Cleaning
The process of removing food and other types of soil from the surface, such as a countertop or plate.
Sanitizing
The process of reducing the number of microorganisms on a surface to safe levels.
What are the four steps for cleaning and sanitizing?
Clean the surface.
Rinse the surface.
Sanitize the surface.
Allow the surface to air dry.
When must food contact surfaces be washed, rinsed, and sanitized?
After each use.
Anytime you begin working with a new type of food.
Anytime you are interrupted during a task.
At four hour intervals if in constant use.
What are the factors that affect the cleaning process?
Type of soil. Condition of the soil. Water hardness. Water temperature. Surface being cleaned. Agitation or pressure. Length of treatment.
What is the difference between general purpose detergents and heavy duty detergents?
General purpose cleaners are mildly alkaline cleaners the remove fresh soil, while heavy duty detergents are highly alkaline cleaners that remove wax, aged, or dried soil, and baked on grease.
What are degreasers, and where do they work well?
They are detergents that contain a grease dissolving agent, and they work well in areas like grill backslashes, oven doors, and range hoods.
What are delimers used on?
They are used on mineral deposits and other soils that other cleaners cannot remove; such as, lime scale on dishwasher machines, and rust stains on copper and brass.
What do abrasive cleaners contain that other cleaners do not?
They contain a scouring agent that helps scrub hard to remove soil like baked on foods; however, they can scratch surfaces.
What are the two ways to heat sanitatize?
Immerse in hot water.
-water must be at least 171*, and item must be immersed for 30 seconds.
High temperature dishwashing machines.
-attach temperature sensitive labels to items or place a heigh temperature thermometer in a dishrack.
What are the three most common types of chemical sanitizers?
Chlorine.
Iodine.
Quaternary ammonium compounds.
How can you chemically sanitize items?
By immersing a clean object in a specific concentration of sanitizing solution for a specific amount of time.
Or
By rinsing, swabbing, or spraying the object with a specific concentration of sanitizing solution.
What are the factors influencing the effectiveness of sanitizers?
Contact time. Temperature. Water hardness. pH. Concentration.
How is concentration measured and expressed?
The concentration is measured with a sanitizer test kit which is expressed by ppm, parts per million.
In high temperature dish washing maching, water temperature is critical. What temperature must the final sanitizing rinse be at least? For stationary rack single temperature machines?
The final sanitizing rinse must be atleast 180*.
For stationary rack single temperature machines must be atleast 165*.