Looking for a good vacuum...

[GET MO]

I saw some videos of people using canning jars heating um up and vacuum purging with no problem and never seen one implode.

 

[CarefulGrower]

I saw some videos of people using canning jars heating um up and vacuum purging with no problem and never seen one implode.

They can last, and they can go randomly. Mason jars are worry some cause if they go, they throw shrapnel.

I have a 1.5gal (like yours) with a square lid (3/4" thick) and mine is on a skillet as I type right now, -29.9hg @ 130 degrees (mine won't lock 120), as it has many many times before. It may implode in the future, I do not know, but it has done the job so far.


It better hurry up and purge, I want a dab

 

[CarefulGrower]

If the one you ordered only has 1 valve, message the seller. Ask if he can add a valve inbetween the pump and tee. This will save a lot of headache, and make your pump last longer. Valves are about $3.

Double valve -

Single valve -

 

[GET MO]

thats wuts up, the one I ordered comes with a 1/2 " top and two valves. I figure, if it ever were to implode, I could probably replace the top with some thicker material.

 

[vertigo0007]

Finally cracked a 1/2 gal ball jar recently. I didnt have access to my ss chamber snd needed oil asap. Took years of repetetive vac and heat to crack it, tho i dont suggest the 1/2 gal size. Smaller is better w a jar. Pumped 1 down to 25.5 one day with a hand pimp and shot the glass w a bb gun. It most certainly did implode then