Other keys to identifying fresh fish: the gills should be bright red and full of blood (figure C). The cavity should be clean and fully eviscerated. The flesh should be firm and bounce back.Select a smaller species rather than a larger one because it will be easier to work with, and you'll have less leftovers. Fresh-cooked fish is best!It is imperative that whole fish is kept at a temperature of less than 40 degrees at all times. The closer to 32 degrees, the better. When bringing the fish home, even if you're traveling short distances, bring along a cooler or a bag of ice to ensure that it stays fresh.Once home, the fish should be placed directly into the refrigerator, at the lowest possible point. Also, set it in a drainable pan, so that the juices won't drip onto other food items.The fish should be cooked within a day of its purchase; otherwise it should be frozen. To eliminate freezer burn, fill a heavy-duty plastic bag with water and place the fish inside. The fish will be frozen within the ice and protect it from freezer burn.Scaling the fish may be necessary if the fish has larger scales that will get in the way. If the scales are small, then they can remain.When eating whole fish, be careful of the bones.To prevent a fish fillet from curling, score the skin with a knife. Fish in Foil
A fancy restaurant technique is to steam fish in parchment paper. It is called "en papillote," which means "in paper." You can also use aluminum foil for this. Here's how.
Ingredients:
fish of choice
extra-virgin olive oil
herbs of choice
sliced red onions
carrots, julienned
red and green peppers, julienned
kosher salt, to taste
3 to 4 lemon slices
fresh thyme to taste
fresh parsley
lemon juice
fresh garlic cloves
Preparation:
Tear off a large piece of aluminum foil and place it on your work surface. Pour some olive oil into the foil as a base for the fish, then add a bed of vegetables.
Season the top of the flesh and inside the cavity with kosher salt. Insert several sliced lemons into the cavity, followed by fresh thyme and parsley. Squeeze a little lemon juice on the top of the flesh. Add fresh garlic cloves and butter slices as well as any other ingredients you wish.
Tightly seal the foil so that the fish simultaneously bakes and steams, then bake in a 350-degree oven for 20 minutes or until the internal temperature is approximately 120 degrees. Be sure to remove the lemons and parsley before cutting into the fish.