AnswerLine • Iowa State University Extension and Outreach
Aug 18, 2020·AnswerLine gets questions each year about using a portable burner (hot plate) for canning. Usually the question comes when a switch has been made to an electric cooktop from a gas range or when an electric-coil range is replaced with a smooth (glass) cooktop, either radiant heat or induction, and the way of canning needs to change to prevent cracking the cooktop, fusing the canner …