HUMAN NUTRITION

Detailed explanation-1: -Water temperature for handwashing should be at least 100˚F (38˚C).

Detailed explanation-2: -Water temperature must be at least 180°F, but not greater than 200°F. At temperatures greater than 200°F, water vaporizes into steam before sanitization can occur.

Detailed explanation-3: -Bump that washing time up to 20 seconds, water use climbs to nearly three-quarters (. 75) of a gallon. Many experts advise people scrub their hands for at least 20 seconds to achieve a thorough cleaning.

Detailed explanation-4: -They found no evidence that hot water had any benefit, and noted that it might increase the “irritant capacity” of some soaps, causing contact dermatitis. “Temperature of water used for hand washing should not be guided by antibacterial effects but comfort, ‘’ they wrote, “which is in the tepid to warm temperature range.