Kitchen Safety and Sanitation Unit Review Quiz

Chicken breast, milk, and cheese are perishable foods because they have a limited shelf life and can spoil or become unsafe to consume if not stored properly. These foods contain moisture and nutrients that provide an ideal environment for bacteria and other microorganisms to grow. Therefore, they require refrigeration to slow down the growth of bacteria and extend their freshness. On the other hand, dried fruit, beef jerky, bottled water, saltine crackers, pretzels, and corn chips have a longer shelf life and are not as susceptible to spoilage because they have low moisture content or are processed to remove moisture.

After finishing cutting raw chicken on a cutting board, it is important to wash the board separately in hot, soapy water to remove any bacteria or contaminants. This helps to prevent cross-contamination with other foods. After washing, the cutting board should be dried and put away. Additionally, it is recommended to sanitize the cutting board in hot, soapy water and 1 tsp of bleach to further eliminate any remaining bacteria. This thorough cleaning process ensures proper hygiene and minimizes the risk of foodborne illnesses.

Contaminated water is a common source of E-coli because E-coli is a type of bacteria that can be found in feces. When water becomes contaminated with fecal matter, such as from sewage leaks or animal waste, it can contain E-coli bacteria. Consuming or coming into contact with this contaminated water can lead to E-coli infection, which can cause symptoms such as diarrhea, abdominal pain, and fever. Therefore, it is important to ensure that water sources are properly treated and maintained to prevent the spread of E-coli.

Extinguishing a grease fire requires methods that can smother the flames without adding fuel or spreading the fire. Flour is not recommended as it can explode when exposed to high heat. Water should not be used as it can cause the grease to splatter and spread the fire. The correct methods to extinguish a grease fire are using baking soda, salt, or a pan lid. Baking soda and salt can smother the flames by reducing the oxygen supply, while a pan lid can be used to cover the fire and cut off the oxygen. A fire extinguisher can also be used, as it contains chemicals that can suppress the fire.

Using a sturdy folding chair to stand on is not a safe practice when trying to reach an item in the top cabinet. Standing on a folding chair can be unstable and may lead to accidents or injuries. It is recommended to use a step stool or ladder that is specifically designed for reaching high places to ensure safety. Therefore, the statement is false.

When cleaning up broken glass, it is important to first sweep up all of the visible pieces of glass into a dustpan and throw them away. This helps to ensure that the larger and more dangerous shards are removed from the area. After that, it is necessary to wipe up any remaining small shards with several thicknesses of damp paper towel. This step is crucial to ensure that all the tiny and potentially harmful pieces of glass are properly cleaned up and disposed of.

To prevent the growth of bacteria, hot foods should be kept at 140°F or above, not 130°F. This is because bacteria can grow rapidly between 40°F and 140°F, a temperature range known as the "danger zone." Keeping hot foods at 130°F or below would not effectively prevent bacterial growth, making the statement false.

Water is a poor conductor of electricity because it is a covalent compound composed of polar molecules. While water does have some ability to conduct electricity due to the presence of ions from dissociation, it is still considered a poor conductor compared to other substances like metals. The low conductivity of water is primarily due to the fact that it has a low concentration of ions and a high resistance to the flow of electric current.

Salmonella is a type of bacteria that can cause food poisoning, but it is not the deadliest form. While salmonella infections can be severe, there are other types of food poisoning, such as botulism or listeria, that can be more life-threatening. Therefore, the statement that salmonella is the deadliest form of food poisoning is false.

Leftover pizza should not sit out on the counter longer than 2 hours, not 4 hours. After 2 hours, bacteria can start to grow on the pizza, increasing the risk of foodborne illness. It is recommended to refrigerate or freeze leftover pizza within 2 hours to prevent bacterial growth.