Glass VAC chamber - safe?

Quick, stupid question,

Can a little glass jar like this one for example handle the vacuum pressure when hanging?
I do not plan to hang more than ~10 lbs, perhaps max 15 lbs sometime in the distant future. Not sure how I will attach the weights yet, but I am thinking of tying a rope around its neck… Could that be a weak spot of some sorts?

I don’t want it to shatter into many pieces and pierce my glans :( my gawd…
Perhaps I should go buy a transparent plastic jar or something like that before I continue my DIY experiments…

Kind regards

It doesn’t look that delicate to me. It’s fairly thick glass isn’t it? As long as you don’t hammer nails with it, I think you should be OK. :up: :)

A plastic jar will be way more likely to collapse holding a vacuum.

Yeah, its quite thick! Have you ever used glass?

I checked out vac extenders on amazon and there it says that the cups are made out of plastic.. so I was not quite sure whether glass would be safe.

I have used a glass sun tea jar for full package pumping and the only thing to worry about with that is being careful not to drop it.

For you, there is no way that vacuum pressure is going to break that little but very strong jar.

Alright, thanks for the info!