We would not encourage anybody to do this.” Emerie Brine to Randal Oulton. Our jars are not meant for the oven so any heat of that type could potentially cause harm.

We would not recommend trying this ‘tip’ that’s floating around social media.” Ball to Randal Oulton, via FB private message.

Our jars were not designed to be used in this manner, nor have they been tested to safely be used in this manner. What do Mason jar makers Ball and Bernardin sayīoth Ball and Bernardin recommend against doing this with Mason jars. Several people have already reported the jars cracking on them while attempting this. If the jar even cracks, the meatloaf should still be garbaged (and not given to animals), as it could contain minute glass shards. If it does, it could explode inside the oven or as you remove it from the oven exposing it to a sudden air temperature change, exploding hot grease all over you. The risk is that the glass jar could crack or worse, shatter. Some Pyrex is tempered for use over open flame on a stove burner other Pyrex is tempered for use in hot, dry air inside ovens.Ĭanning jars are not tempered for use in hot, dry air rather, their glass is tempered to withstand heat in moist environments (namely, the water inside canners, and no that does not include “moist grease.”) Glass is tempered in different ways for very different uses.

Is this safeįirst, to be clear, this is absolutely not a safe practice owing to the risk of the glass breaking from the form of heat the glass is receiving. All the grease pooled on the sides, from where we would normally just have siphoned it out with a turkey baster, but we needed to see if the jar would do its stuff and suck up the grease.

Ball grabbers glass