The coronavirus has changed Canadians’ behaviour in and around the kitchen because of fears their food may be contaminated, according to a new study.People washed their hands more, despite the shortage of sanitiser, and they rubbed produce with various “disinfectants” – such as vinegar and baking soda – they thought would get rid of possible viral strains but in fact were not at all effective.The excessive precaution could exacerbate any mental stress brought on by the pandemic, according to…