MU Extension MU Extension       University of Missouri    ●    Columbia    ●    Kansas City       Rolla     ●    St. Louis

MissouriFamilies.org - Food Safety

 

Quick Answers

 

Can a microwave oven be used for home canning?

 
A microwave oven cannot be used for home canning. Low acid foods must be processed at 240 degrees F; a microwave can only reach 212 degrees F. Even acid foods must have the uniform heat provided by a conventional water bath canner. Because of its uneven heating pattern, a microwave oven does not assure consistent heat to each jar during processing. There is also a danger of the jars exploding as the molecules in the food are moving faster which results in a vigorous rolling boil. Explosion may occur as food is being removed from the oven.
 

 

Barbara Willenberg, Nutritional Sciences, University of Missouri Extension

 

 

 

 

 


University of Missouri logo links to http://extension.missouri.edu

Site Administrator:
mofamweb@missouri.edu
Copyright  ADA  Equal Opportunity


MissouriFamilies is produced by the College of Human Environmental Sciences,
Extension Division, University of Missouri


Last update: Wednesday, August 10, 2011