An operation must obtain must obtain a variance from a regulatory authority if

• A. Smoking is used as a method of food preservation
• B. Refrigeration is used for preservation
• C. Cooking with steam
• D. Using pre-washed ingredients

Answer: (A)

When a preservation method changes how food is kept safe beyond standard practices, a variance may be required to show the operation has adequate controls. Smoking to preserve food is such a method because it alters moisture, temperature exposure, and potential hazards unique to smoke processing. Regulators want to review and approve the specific steps, holding times, temperatures, storage, and labeling to make sure the product remains safe. That additional approval isn’t needed for more common methods like keeping foods cold through refrigeration, cooking with steam, or using pre-washed ingredients, all of which fall under standard food-safety controls.