Smoking and salting are two old-time methods that are still in use, and smoked salmon, herring, and finnan haddie furnish us well-flavored foods at a reasonable price. Small smoked herring are eaten uncooked, and the other two kinds are excellent broiled, or parboiled and finished in the oven. Salt cod should not be despised, for it is convenient and may be made palatable. Like the meats, the fish preserved by these methods are slightly less available for digestion.
Preserving in oil is made familiar to us by the sardine of Italy in olive oil and the small herring of America in cottonseed oil, which also bears the name of sardine. The latter is less delicate in flavor than the European sardine, but is of course cheaper, and is palatable and of equal food value.
Canned fish and shellfish are used in localities where fresh fish are not easily available, and should not be unwholesome if the process is properly inspected. Canned salmon is the most common, and makes an excellent luncheon dish when well prepared (see chapter on salads).
This is also true of the clam, except the tough membranes which must be chopped. The flesh of both lobster and clam is toughened by cooking, and the process should be short.