First off, thank you all for the replies. And to address some doubts, the meat was indeed bagged and in a lid covered water bath. As for temp control, I've found that when heating the water on the stove top to target temp plus about 10 degrees and preheating the oven to the desired temp reveals pretty good results. Sure, I wouldn't try anything really delicate with this method, but with ribs and roasts and things like that, this works well for me. I do use a thermometer to make sure things are where they need to be at. All of that said, I suspect that our very well intentioned house guest from Lyon, France, may have unknowingly turned off my makeshift 'under vacuum' machine. Not her fault; she did the right thing in light of no prior knowledge as to what I was up to. As another poster pointed out, 'you should eat it'. If I bring the bags back up to, say, 170 degrees for half an hour and then build a really hot fire in the grill, I'm sure I could kill off any nasties. But maybe not... At least this serves as good discussion. Humbly, JT