1. A line cook at a taquería leaves a pan of cooked carnitas on the counter at room temperature during a slow afternoon. Which range describes the Temperature Danger Zone where bacteria grow most rapidly?
- a.50°F to 150°F
- b.70°F to 125°F
- c.32°F to 100°F
- d.41°F to 135°F✓
The Temperature Danger Zone is 41°F to 135°F; bacteria multiply fastest between these limits, and growth is most rapid from 70°F to 125°F. Cold holding must stay at or below 41°F and hot holding at or above 135°F to keep food out of the zone. The other ranges are incorrect because they do not match the Food Code limits.
2. What is the minimum internal cooking temperature and hold time for chicken, turkey, and other poultry?
- a.175°F for 10 seconds
- b.165°F for <1 second (instantaneous)✓
- c.145°F for 15 seconds
- d.155°F for 17 seconds
Poultry must be cooked to 165°F for <1 second (instantaneous) because it commonly carries Salmonella and Campylobacter. 155°F is for ground meat, 145°F is for whole cuts and seafood, and 175°F is not a Food Code standard.
FDA Food Code §3-401.113. Cross-contamination occurs when:
- a.Food is cooked to the correct temperature
- b.Pathogens transfer from one surface or food to another, such as raw chicken juices dripping onto lettuce✓
- c.A food naturally spoils over time
- d.Salt is added to a dish
Cross-contamination is the transfer of pathogens from one food or surface to another, such as raw poultry juices dripping onto ready-to-eat produce or using the same unwashed cutting board. Storing raw meats below ready-to-eat foods and using separate equipment prevent it. Natural spoilage, seasoning, and proper cooking are not cross-contamination.
4. A cook at a taquería assembles cold chicken tacos, placing shredded chicken, cilantro, and onion directly onto tortillas that will be served without further cooking. How should the cook handle this ready-to-eat food?
- a.Using gloves, tongs, deli tissue, or other utensils to avoid bare-hand contact✓
- b.Bare hands are acceptable because the food is cold
- c.With clean bare hands, as long as they washed recently
- d.By first dipping bare hands in sanitizer
Food handlers may not touch ready-to-eat food with their bare hands; they must use suitable utensils such as single-use gloves, tongs, spatulas, or deli tissue. Even clean, recently washed hands can transfer pathogens like Norovirus and Staphylococcus aureus. Sanitizer does not replace this barrier, and the rule applies whether the food is hot or cold.
FDA Food Code §3-301.115. A manager is choosing where to buy meat and produce for a restaurant. What is the most important requirement for suppliers under the Food Code?
- a.They must deliver only at night
- b.They must be located within one mile
- c.They must offer the lowest price in town
- d.They must be approved, reputable suppliers who meet applicable laws and can show inspection compliance✓
Food must be obtained from approved, reputable suppliers that comply with applicable federal, state, and local laws and are inspected as required, because food safety begins with a safe source. Price, delivery time, and distance are business conveniences, not safety controls. Buying from unapproved sources, such as an unlicensed roadside seller, is prohibited.
FDA Food Code §3-201.116. A new prep cook asks the kitchen manager to list every approved way to thaw a case of frozen chicken breasts. Which answer is correct?
- a.In a cooler at 41°F or lower, under running potable water at 70°F or lower, in a microwave if cooked immediately, or as part of the cooking process✓
- b.In a cooler, under running water, in warm standing water, or as part of the cooking process
- c.Only in a cooler at 41°F or lower, because all other methods let the food enter the danger zone
- d.In a cooler, on a prep counter at room temperature, under running water, or in a microwave
The FDA Food Code allows exactly four thawing methods: refrigeration at 41°F or lower, submerged under running drinkable water at 70°F or lower, in a microwave when cooking continues immediately, and as part of the cooking process. Room-temperature counters and standing warm water are never approved because the outer layers of the food would sit in the temperature danger zone.
FDA Food Code §3-501.137. A breakfast cook cracks shell eggs to order and serves each plate as soon as it is ready. What minimum internal cooking temperature applies to these eggs?
- a.135°F
- b.165°F for 15 seconds
- c.145°F for 15 seconds✓
- d.155°F for 17 seconds
Shell eggs cooked to order and served immediately must reach 145°F for 15 seconds. If eggs are pooled or will be held for later service, the higher standard of 155°F for 17 seconds applies instead.
FDA Food Code §3-401.118. What is the minimum internal temperature for TCS food held on a steam table for service?
- a.145°F
- b.135°F✓
- c.155°F
- d.165°F
Hot TCS food must be held at 135°F or higher. Holding above this temperature keeps the food out of the danger zone, where pathogens that survived cooking or were reintroduced could multiply.
FDA Food Code §3-501.169. A restaurant wants to smoke and cure its own bacon in-house to preserve it for retail sale. Before starting, what must the operator obtain from the regulatory authority?
- a.A written waiver of the labeling rules
- b.A variance and a HACCP plan that addresses the smoking-and-curing process✓
- c.Nothing extra, because smoking is a normal cooking method
- d.Only a certified food protection manager on site
Under the Food Code, smoking or curing food as a method of preservation (rather than just for flavor) requires the operator to obtain a variance from the regulatory authority and to keep an approved HACCP plan. The plan must identify the hazards and controls specific to that process because it deviates from standard practice.
FDA Food Code §8-201.1310. What is the key difference between cleaning and sanitizing a food-contact surface?
- a.They are the same thing done twice
- b.Sanitizing removes grease and cleaning kills germs
- c.Cleaning uses hot water and sanitizing uses cold water only
- d.Cleaning removes food and soil; sanitizing reduces pathogens on an already-clean surface to safe levels✓
Cleaning physically removes food residue, grease, and dirt, while sanitizing uses heat or chemicals to reduce the number of pathogens on an already-clean surface to safe levels. A surface must be cleaned before it can be sanitized, because soil shields microbes from the sanitizer. The two steps are distinct and both are required for food-contact surfaces.