I've never had great luck with bluefin after more then 4 or 5 months I ussually give it to friends who seem to eat anything, I think they smoke alot of it, or maybe they smoke something else and don't notice the taste. anything that is getting a bit old we give them and they're always happy to get it. when we vacuum seal bluefin, we do remove the redline and extract as much of the blood as possible, useing the rice paper is the same way we do it. When thawing we also remove it from the bag and place it in a paper towels or again rice paper. We really try and eat as much of this fresh as possible and call in friends and neighbors who love grilling it fresh, same thing with Mahi, they don't seem to freeze to well either.I have some friends who won't eat any fish that has been frozen, they just keep what they'll be able to eat fresh and release the rest. Wreckfish and flounder really vacuum seal extremely well, like most white meat fish do. Striper we cut way any of the meat section near the belly and that tastes alot better since vacuum sealers came out. Yfin and lfin no problems, and we love to can, both of them, people that I've given our canned tuna fish find it hard to want to buy store canned tuna after eating what we jar up. We've used it 2 yrs jarred and it still was excellent, I used to post I was bringing it to work on fridays and people would bring bread,tomatos and all the rest for us to have a nice big lunch. Very few people would go out for lunch or bring their own lunch when I posted bringing in the tuna we would set-up.. You just need tobe sure the jar pops and seals properly or it will stink the whole house up. Years ago I walked in my parents house and as soon as I got in the front door the stink hit me, I'm looking around for a dead animal or who knows what, it smelled like the time I left some mackeral in my Moms trunk of her buick I had used to put in raccoon traps. Man did I hear it, it took me hours to get the smell out of her car, but the day I smelled it in the house I couldn't find what it was, I walked in the kitchen and see my Dad chowing down a tunafish sandwich he made from our jarred tunafish, I hollered at him spit that out!! I couldn't beleive he could possibly eat that, how in the world he didn't smell it I couldn't believe. I said you better throw that stuff up so he took some epidec to help make him puke it up, and the Dr, phoned in some other medicine to neutralise anything that he didn't get rid of. Here he had to clean up part of an oil spill on his job site and it clogged his sinuses all up he couldn't smell or taste a thing. I still get nauseas thinking about it. So if you jar it make sure you have a good seal, as long as it seals properly and you use yfin or lfin it is incredible to eat.