Dating kerr mason jars
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So here’s my dilemma: I don’t want to can with them- I want to have them out somewhere that I can look at them all the time!
I’m thinking of storage – maybe crafts or seasonings?
Golden Harvest is another brand available and are usually a good price. One brand I'd suggest you stay away from is the Mainstay brand. NCFHFP Classico Jars they are nice and thick, they seem just as heavy if not heavier than mason jars... This would increase the risk of the jar breaking when used for canning. Jarden the manufacturer of Ball, Kerr, and Bernadin canning jars official position is oven canning, heating jars in the oven for canning, or using jars to bake is unsafe and not recommended. The unsafe condition is what is call Thermal Shock Breakage.
Kerr, Mason, Jarden or Ball are some brands available. I'd just as soon skip the failure rates and stay with mason jars. If scratched, the jar becomes weaker at this point and can more easily break.
Atlantic Glassworks of Crowleytown, New Jersey manufactured the first mason jars, which were stamped with, “Mason’s Patent Nov. In the late 1800s and early 1900s, a number of companies produced canning jars, each with their own take.1 Half-Gallon jar - Narrow-Mouth - Ball "Perfect Mason" - Pale Blue color - - .50 .2 Half-Gallon jars - Narrow-Mouth - Atlas "Strong Shoulders" - Early 1900s, Pale Aqua Blue - - .00 each. If you have standard preserving jars available they should always your first choice. AND note they do suggest expecting higher failure rates. A coating is applied at the glass plant to reduce scratching and scuffing.This breakage could be anything from a crack in the glass where shards may be deposited into the jar and not observed by the canner or baker and end up in your food, to a full break of the jars possibly happening during handling and filling with your recipe.