The best frozen fish seem to be the ones that have only been frozen once and not twice. What seems to happen is that some fishing boats to save on staffing costs just freese the fish on the boats, then thaw them on arrival for processing before freezing them again for delivery. This produces fish that tend to release a lot of water and become horrible spongy when you get them home. Try to find out if your fish have been processed right on board the fishing boats and only frozen once.

One such supplier is Engholm www.enghav.se from www.saljpartner.com

Thawing fish can be done in cold water for fast thawing, but the best is slowly in the fridge over 24 hours.