I’ll have to get back to you on that Alec when I pull it out, but I don’t anticipate any degradation of quality as it’s 90% Butter and liver. I packed it in a plastic tub with plastic wrap pressed against the surface and a lid on the container.
If you have a seal a meal vacuum use it. If you don’t have one I highly recommend it as you can save money with it by buying giant cuts of meat or family value packages and freeze smaller portions. Seniors who shop just for one or two people end up paying a premium price for stuff unless you do something creative. This is how I save money and preserve the quality of food I freeze.