Cooking Fresh Crab at Home Safely

Why Fresh Crab Tastes of the Coast

There is something about eating crab within sight of the sea that makes it taste better, and something about eating it at home that stretches the weekend out by another day. If you have spent an afternoon on a harbour wall watching the boats come in, or queued at a quayside shack with a paper bag going damp in your hand, you already know the appeal. The good news is that you do not need to cook a live crab to bring that flavour to your own table. Choosing a crab that a fishmonger has already cooked and cooled is the simplest, safest and most reliable route to a proper seaside plateful — and it is the route most coastal cooks take.

The trick is not in elaborate cooking. It is in buying well, keeping the crab cold, picking the meat cleanly and then getting out of its way with good bread, a lemon and a jar of decent mayonnaise.

Choosing Crab From a Reputable Fishmonger

Everything rests on the crab you start with, so buy from a counter with a high turnover rather than a supermarket chiller that may have been sitting there since Tuesday. Ask when the crab was cooked. Same day is ideal; within twenty-four hours is perfectly good.

A few practical things to look for:

• Weight: it should feel heavy and solid for its size. A light crab is often a watery, poorly filled one.
• Smell: clean, sea-fresh and faintly sweet. Any hint of ammonia or sourness means walk away.
• Shell: damp and firm, not dry, chalky, cracked or flaking at the edges.
• Legs and claws: intact and stiff. Missing or floppy legs suggest rough handling or an older crab.
• Type: brown crab is the classic choice. Cock crabs (males) carry bigger claws and more white meat; hen crabs have more of the rich brown meat.

If you do not own a crab cracker, ask the fishmonger to crack the claws for you. Most will happily do it, and it saves a great deal of swearing at the kitchen table.

Getting It Home and Keeping It Chilled

Crab is a perishable shellfish and it does not forgive a warm car. Take a cool bag and a couple of ice packs with you, and go straight home rather than tacking a long coastal walk onto the end of the trip with the crab in the boot.

Once indoors, put it in the fridge straight away. Aim for a temperature between 0°C and 5°C — the bottom shelf is your friend here. Sit the crab in a bowl, cover it with a plate or a sheet of cling film, and keep it away from anything uncovered that might pick up the smell. Picked crab meat should be eaten within twenty-four hours; a whole cooked crab still in the shell will hold for up to forty-eight hours at a push. Beyond that, the flavour goes flat and the risk rises.

Picking the Meat Safely

Set yourself up properly before you start: clean hands, a clean board with a lip or a large tray to catch the juices, and a bowl for the shell. Work calmly and keep the crab cold until the moment you begin.

• Twist off the legs and claws first, then crack the claws with the back of a heavy knife or a cracker — one firm tap, not a series of nervous ones.
• Lift off the top shell and discard the grey, feathery gills (sometimes called dead man's fingers), the small stomach sac just behind the eyes, and the dark intestinal thread running along the body.
• Scoop out the brown meat and set it aside in its own bowl, then break the body into halves and pick the white meat from the chambers.
• Pick over a bowl so nothing is lost, and run your fingers through the meat afterwards for stray shards of shell.
• Keep white and brown meat separate — they behave differently and are best used differently.
• Return anything you are not eating straight away to the fridge rather than leaving it out on the worktop.

Serving It Simply

Crab is sweet and delicate, so the best approach is restraint. Good white meat needs little more than a squeeze of lemon, a twist of white pepper, a pinch of flaky sea salt and a generous spoonful of mayonnaise — ideally homemade, but a good bought one is fine. Stir a little lemon zest or finely chopped chives through the mayonnaise if you fancy it.

Brown meat is richer and more savoury. Spread it thickly on hot buttered toast with a squeeze of lemon and the faintest dusting of cayenne, and you have one of the great seaside suppers. For a dressed crab, pack the brown meat back into the cleaned shell, pile the white meat on top, and garnish with parsley and lemon wedges.

Serve with brown bread and butter, a sharp green salad, and cold new potatoes. A dry white wine or a cold lager is the obvious match. Resist the urge to add cream, cheese or heavy sauces — they bury the very thing you paid for.

Keeping Crab Safe From Counter to Plate

Picked crab will keep in a sealed container in the fridge for around twenty-four hours, but it is at its best the day you buy it. Do not reheat it; reheating turns the texture rubbery and gains you nothing. Never leave crab sitting out for more than an hour, particularly in high summer, and be strict about washing hands, boards and knives in hot soapy water afterwards. Shells go straight in the bin, not down the sink.

If you are pregnant, elderly, or cooking for someone with a compromised immune system, take extra care: buy from a trusted counter, keep the crab properly chilled, and eat it promptly. Do it that way and a simple crab, a lemon and a loaf of bread will taste like the best day of your holiday, eaten at your own kitchen table.