Quote Originally Posted by CharlesWaugh View Post
You are emptying the secondary bag by sucking, not the food-filled bag per se.
And, raw food bits are in the air when we chop, grind, etc. anyway.
Our lungs are good at handling those little bits of stuff, but a plastic surface that then gets tossed in a dark drawer for a month aint so good at handling it - unless you WANT the biology experiment aspect of it!

Maybe I'm too cavalier. I Dunno.
:- )
Some of the air being sucked out has to be from the food-filled bag or this wouldn't work.

I found this warning at the CDC:

https://www.cdc.gov/brucellosis/transmission/index.html

I have no idea how common this is.

Rick