man... you need to chill out. i wasnt supporting glass jars, i just was pointing out that alot of people (such as yourself) frown upon useing them because they "can" explode. ANYTHING will explode if your not careful, glass, pvc and yes even steel. do you think bomb caseings are made from glass? the last post is weeks old, where were you at when these guys were all supporting the use of glass??? i am not giveing bad advice to anyone, just my personal experience. you wana give good advice? then tell everyone to stop playing around with highly explosive gas. glass doesnt explode, hho explodes.