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I have a Medical grade vacuum pump that will draw vacuum down to very near zero psi. I have used this vacuum pump to bust 1.5" x 1.5" Oak board by drawing down the vacuum and allowing the 14+PSI atmospheric pressure to push on the boards stacked acorss each other.
This experiance leads me to wonder how far down I can draw a large mouth mason jar before it breaks.
Looking to do some food storage.
This experiance leads me to wonder how far down I can draw a large mouth mason jar before it breaks.
Looking to do some food storage.