I'm planning on making corned beef from Tyler Florence's recipe making my own brine. I didn't really know what to buy so I bought a packaged O'Donnell's corned beef brisket which I think was probably already brined, but I'm not sure. It was in a shrink wrapped package with some liquid and a little seasoning packet. I started brining it in the fridge 4 days ago. Is it ok that it will be "double brined" so to speak? Is all hope lost? St Patrick's day is in 2 days and I'm a little worried now.