I have used a vacume sealer. It works very well. I would lay all of my fillets on a cookie sheet, sprinkle them with water to form a glaze of ice and freeze them. Then I would take them out and vacume seal them. They are seperated that way and you can open the bag and just take out the number you want and seal the rest back! Use wax paper on the cookie sheet to keep them from freezing to it.