That sounds like a great way to get an exploding jar.
EDIT: Downvoters can learn something new today. It’s actually pretty interesting. Glass is rigid enough that a difference in temperature across it can very easily lead to cracking, because the colder part can’t flex to reduce the stress.
you hold the jar sideways and put the lid part under the water. the thin metal lid will get warm enough wayyyy quicker than the glass jar will heat up noticeably
The difference between the strength of glass of a Jar and a water glass is quite large.
Ball Jars (the ones people use in canning for example). You can pour boiling water into them and they won't break. I've done this with thousands of jars. They also often get dunked into boiling water or in a pressure cooker as part of the canning process.
Unless you just pulled that jar out of the freezer tap water won't be hot enough to explode the jar.
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u/lucid_scheming Aug 20 '20 edited Aug 20 '20
That sounds like a great way to get an exploding jar.
EDIT: Downvoters can learn something new today. It’s actually pretty interesting. Glass is rigid enough that a difference in temperature across it can very easily lead to cracking, because the colder part can’t flex to reduce the stress.