I have been using pint and quart plastic bags that require a twist tie to close for years (I just bought 3000 more) then wrap in frezzer paper. dYou can remove the air better with these than with zip locks. Works for me.

I put my fish in plastic containers filled with water. They come out still quivering, well fresh anyhow.

Its all about removing the air--more than what it is in.

If small game gets a little old or some frezzer burn, I boil it in water till tender, salt and pepper to taste and eat it like cold chicken. Actually that is now my prefered method for squirrels now.

If large game meat gets a little old or frezzer burnt, it goes into the crock pot with an onion and a can of cream of mushroom soup.

Don't throw much out around here and the dog only got table scraps--currently no dog, so no table scraps.
JMHO
Tim

"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".