Is it safe to leave food in tin cans after opening?
A. Yes, but like fresh cooked food, food in tin cans needs to be covered and kept in a refrigerator or other cold place. Q. When processing food, is it necessary to have the pressure cooker filled with jars? A. It is economical to process at one time as many jars as the cooker will hold, for it saves time and fuel. But if you do not have enough jars to fill the cooker, a smaller number may be successfully processed. Q. What causes the lids to buckle? A. Buckling lids may be due to a number of things: • This problem may be caused by tightening the jar rings too tightly before processing the jars. During processing, the flexible metal lid permits the jar to exhaust air. and rings that are too tight will not allow the air to escape during processing. · • Not following the correct preheating process for the brand of lids used. • Filling the jars too full. • Using the raw-pack method for starchy vegetables. • A steam leak from the pressure canner lid. • Cooling the pressure canner with wat
