What safety standard did david m. theno implement at jack in the box restaurants after the e. coli outbreak in 1992?

all refrigerated delivery trucks were required to have a record keeping thermometer mounted inside

Explanation:

E. coli is a bacterium found naturally in the intestines of humans and animals. Most of its types are harmless, however, some can cause serious foodborne illness. Transmission to humans can occur through the consumption of contaminated food, especially raw or undercooked meat and milk, and also through the consumption of raw or poorly preserved vegetables.

In 1992 there was an outbreak of this bacteria due to poor food conservation. Because of this outbreak and fear of losing his business David M. Theno implemented in Jack in the Box a risk prevention system to prevent the bumps sold there from being contaminated with bacteria. For this reason, David Theno required that all refrigerated delivery trucks be required to have a registration thermometer mounted inside. That way, it would be checked if the pattern of food preservation was being followed perfectly.