Question

Prescott ch35.2, 41.3-41.4 6 Saved Help Save&Exit Submit You are planning a cookout this weekend, so Friday night you defrost some hamburger meat on the countertop. The next morning, the cookout is postponed until the following weekend due to bad weather. You wonder if it is safe to put the meat back in the freezer and thaw it again next weekend. Select all statements that accurately apply to this situation. 21 10 points Check All That Apply Skipped The bacteria in the ground beef were not killed upon freezing and resumed growing when the meat thawed at room temperature. Book References Ground beef is an especially good substrate for contaminants like E. coll 0157:H7 because of the increased surface area. Thawing food at room temperature does not pose any risk. 0 By the time the ground beef is thawed the second time at room temperature, there most likely will be hundreds to thousands of times more bacteria than were present when it was originally frozen. Hamburgers are always cooked sufficiently to kill pathogens. < Prev 21 of 231 Next> Hill

Answer 1

Ground beef is an especially good substrate for contaminants like E.Coli O157.H7 because of the increased surface area.

Hamburgers are always cooked sufficiently to kill pathogens

Once the hamburger is defrosted, it can be put inside the freezer again till it is raw and can be thawed but this will lead to loss of flavor and quality. As long as the food was kept in the freezer, dangerous bacteria have not grown on it and it is considered to refreeze. However, due to the increased surface area the ground beef is more prone to bacterial contaminants.