After more than thirty people in twelve states contracted salmonella from microwaveable dinners, the United States Department of Agriculture (USDA) issued a warning on February 12th about microwaving food.

“Foods cooked improperly in the microwave have the potential to make people sick,” said Graciela Padua, a research associate professor of food science and human nutrition at the University of Illinois Urbana-Champaign.

Padua added that one of the main reasons for the salmonella outbreak is because people simply don’t follow the directions on the food’s packaging. If consumers read the instructions more carefully, the risk of sickness would be minimized, she said.

When you heat up a microwave ready meal, be sure the food is heated thoroughly, all the way through the package. If possible, stir the food to distribute the heat and continue cooking until the entire meal is hot to the touch.