I would like to be able to can fruits vegetable and possibly goat's milk. I know some canning can be done with a hot water bath, but I think a good pressure canner would help. My mom knows a lot about canning, but her pressure cooker is older and neither of us know what to look for in a new one. Does anyone have any thoughts or advice? I was hoping to buy a used one, but I saw some stuff on the internet about the possibility of a defective pressure cooker exploding! Can this really happen?