As a gardening and landscaping expert , I have come across mason jars being used in various ways , from storing preserves to make beautiful DIY guile . However , it is important to understand the limitations of these jars when it comes to inflame tolerance .
Mason jars are primarily made from soda - lime glass , which is a type of glassful commonly used for household glassware . This case of field glass is not as heat - resistant as other case , such as borosilicate glass , which is often used in science lab glasswork . Therefore , it is crucial to handle mason jars with care when break them to heat .
The maximal temperature that a mason jar can defy without split up is around 392 ° F ( 200 ° 100 ) . However , it is essential to observe that reaching this temperature requires a slow and gradual heating process . Sudden temperature changes can cause the meth to shatter due to thermal shock .
If you need to inflame mason jars , such as for canning or preserving purposes , you should follow a specific process to denigrate the risk of break . Here are some steps you’re able to take :
1 . Warm up the jars step by step : protrude by localize the mason jar in a sink or basin filled with ardent pee . Allow them to sit in the warm H2O for a few minutes , ensuring that all parts of the jar are evenly heated .
2 . Increase the water system temperature : After the jars have warm up , you’re able to gradually increase the H2O temperature by supercede the warm water with hot piddle . Again , let the shock soak for a few minutes to ensure even heating .
3 . Transfer to a warm environment : Once the jars have been warm up under hot water , cautiously remove them from the sink or basin and transfer them to a lovesome environment , such as a pot of simmer water system or a canning pot . void place the jar directly on a stovetop or undefended flame .
4 . Monitor the temperature : It is crucial to supervise the temperature of the water or the environs in which the jars are being fire up . Ensure that it does not go past the maximum temperature of 392 ° F ( 200 ° C ) . Using a kitchen thermometer can help you keep track of the temperature .
By following these steps , you could minimize the endangerment of the A. E. W. Mason jars breaking due to sudden temperature changes . It is important to remember that even with proper heating technique , there is still a possibleness of breakage , especially if the jars have any imperfection or legal injury .
Mason jars made from pop - lime glass can withstand temperature up to 392 ° F ( 200 ° C ) when heated step by step and with proper tutelage . However , it is always heady to handle them with circumspection and avoid drastic temperature changes to prevent breakage .
Caroline Bates
