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I am using vacuum bags to cure sometimes - I am pretty sure others do. I am not sure I have tips for you; it's a pretty straightforward process. Maybe cut the bag big enough to prevent cure spill when you spread it on the meat. Massage and flip daily - but that is not specific to the vacuum bags, but to all dry curing approaches.
I tried all forms of curing... I prefer no bags, no container of any sorts... put the meat on a rack with cure, salt and sugar etc. on a sheet pan and in the refer it goes... When I inject, it goes in a bag to catch the leakage so I can rotate every few days... the bag I loose.. not closed up even... I prefer the meat to breathe...
My thoughts on vacuum bags..... the meat is squashed and stuff can't penetrate properly ... no proof.. just my thoughts...
The only reason I use vacuum bags is that I don't trust ziploc bags when it comes to spills. I used them if I have room for a bowl or container to put them in. Even then, I have to be careful when I massage/flip the meats.