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Can I put Glasslock container into Instant Pot?

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  • Feb 5th, 2021 9:26 am
[OP]
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Dec 18, 2014
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Can I put Glasslock container into Instant Pot?

The bottom says “Not for use in oven” but I’ve read that others have used Glasslock containers in their Instant Pot (without lid of course). For pressure cook/steaming. My fear is that it will shatter and damage my instant pot. The model is RP-518 13. When I look up the number it says it is oven safe. I can’t seem to find a straight answer.
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Last edited by kyroshi on Feb 4th, 2021 4:03 pm, edited 1 time in total.
7 replies
Sr. Member
Aug 13, 2011
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Scarborough southwes…
Considering that the instant pot is stainless steel, what kind of damage are you expecting?
Also, instant pot unlikely to be reaching the same temps as oven.

That being said, I've never put glass into my instant pot (nothing the right size) but I've put ceramic without any problem.
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Oct 13, 2008
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Sure. While you're at it ... put some foil in the microwave and start it as well
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It's pretty safe to say that it was not designed to be put in a pressure cooker.
Some are designed to be tough, so might not be a problem.
I fail to see how it could damage the IP - it would obviously ruin whatever you are cooking if it shatters.
I'd think it would be crappy for steaming, as water would collect?
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Jul 29, 2013
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Calgary
I will say that I've done it and did not shatter. These were the glasslock containers from Costco.

Done it multiple times for Chinese New year items
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Apr 19, 2006
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There are Glasslock containers that are "oven safe". If yours says "not oven safe" I would not put it in the pressure cooker.
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Sep 9, 2010
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kyroshi wrote: Can I put Glasslock container into Instant Pot?

The bottom says “Not for use in oven” but I’ve read that others have used Glasslock containers in their Instant Pot (without lid of course). For pressure cook/steaming. My fear is that it will shatter and damage my instant pot. The model is RP-518 13. When I look up the number it says it is oven safe. I can’t seem to find a straight answer.
Interesting question.

An article found online says that using glass pot in instant pot is risky due to thermal shock and that it also depends on the type of glass the container is made of. Apparently, IP says it's OK, Pyrex says it's not OK [I guess Pyrex is being conservative/cautious].

Is Pyrex Safe in Instant Pot
Like Pyrex and Anchor Hocking, Glasslock makes its containers of tempered soda-lime glass that are oven, microwave, freezer, and dishwasher safe.

^ Why You Should Use Glass Food Storage Containers

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Glass caning jars are used in pressure canners [1, 2], so using glass containers in pressure cookers is possible if certain conditions are met.

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Links above do not provide a clear cut answer to your question, though. IMO, using a metal container to cook pot in pot might be safer.

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