I also own a VP 112, do you have any issues with seal integrity for long sous vide cooking (more than 24 hour cook times)?
I use a 9 second seal time and 3 mil bags, but i almost always notice some sort of seepage or slow leak from the bags into the bath. I've read that some organic volatiles (from smoking for example) may travel from inside through the plastic, but I am wondering whether you have had any issues such as what I've seen. I've tried two seal bars and have seen the same result. This only happens for long cook times however..
Also, what brand of containers do you use? can you send me a link to where you buy them?
Thanks!