Sqwertz wrote:
>
> Hundreds of websites claim that you can vacuum-marinate meats and
> veggies in the flexible Foodsaver-type vacuum bags. And I can't find
> any site to the contrary.
>
> I'm think, but I'm not sure, that this is complete bullshit. Correct
> me if I'm wrong (I know you want to!).
>
> You cannot create a vacuum in meat surrounded by liquid in flexible
> packaging using a Foodsaver. All - or at least most - of the liquid
> would have to be sucked out of the end-product for any type of vacuum
> to occur. The most a home vacuum system can do is suck the air out of
> a bag full of liquid leaving very little air. It sure as hell isn't
> going to suck out any dissolved air/gas in the liquid. And if it
> can't do that then it isn't going to be able to cerate a vacuum inside
> the product surrounded by the liquid.
>
> I don't think you can create any significant vacuum in a bag full of
> liquid using these home vacuum sealers. Your machine would suck out
> all or most of the liquid before you could even begin to suck any air
> out of the product within the liquid, making it a futile exercise.
>
> Do the professional "tray-type" lidded vacuum sealers work
> differently, and are they able to create vacuums within the product
> suspended in liquid? How about if you just use a small amount of
> marinade?
>
> I maintain that, for vacuum marinating, a semi-full rigid container is
> required that maintains a significant amount of airspace for a partial
> vacuum to be created. This is why they sell marinating containers,
> either powered by a hand pump/button or by a tube from your home
> vacuum sealer. This is how all the meat packing and processing
> companies marinate their meats - in partially filled vacuum tumblers.
>
> That's my thinking, at least. Am I right, or are all these sites
> telling you they you can vacuum-marinate in plastic bags full of shit?
> (OK, that's a trick question :-)
>
> -sw
I agree, no appreciable vacuum in a flexible bag, just an absence of
air. Tillia / Foodsaver sells a rigid plastic container specifically for
marinating, which supports this theory. Other vacuum marinating devices
from consumer (Revo) to commercial also make use of a rigid vacuum
chamber and usually a tumbling action as well. I have used quart mason
jars with the Foodsaver jar sealer attachment with decent results,
though it's only good for things like chicken tenders that will fit in a
mason jar.