A lobster can live out of the water for a couple of days if kept in a moist and cool place. How can a lobster live so long out of water? A lobster can extract the oxygen from the air, but in order to do this its gills must be kept moist or they will collapse.
Lobsters can live up to 48 hours out of circulating salt water if they are properly refrigerated. Lobsters don't need to be jumping out of the box to be fresh and good eating. They should, however, be checked upon arrival. If they are not moving, it is best to cook them immediately.
Generally, if the lobster is properly refrigerated, it can be eaten 24 hours after death. It is important to note that the lobster should be cooked soon after it dies to ensure it is safe to eat. If the lobster  is frozen right away, it can last up to three months.
Fresh live lobsters can stay in your refrigerator one to two days. Keep them in the back, where the refrigerator is coldest. They must be kept alive until you cook them. Do not store live lobsters in any kind of water—it will kill them.
How long can lobster live out of water? A good hard-shell lobster can live up to 36 hours out of water if kept cool, moist and refrigerated. Since lobster is a gill breather wet newspaper and/or seaweed helps keep them moist. Since lobsters are seawater creatures never store them in fresh water.
Freezing Live Lobsters: Just Don't Do It
Safety aside, freezing and thawing lobster prior to cooking it will lead to enzymes leaching into the meat, resulting in a mushy, unappetizing texture.
Contrary to claims made by seafood sellers, lobsters do feel pain, and they suffer immensely when they are cut, broiled, or boiled alive. Most scientists agree that a lobster's nervous system is quite sophisticated.
To make sure, pick up the lobster - if the tail curls under the body, it's alive. This test is especially important with lobsters that have been stored on ice because they're so sluggish, it's sometimes hard to see movement.
Do NOT store live lobsters in fresh or salt water, your freezer, in sealed plastic bags (lobsters need to breathe), or let them sit in melted ice. The best way to keep your lobsters alive for up to 24 hours is to store them covered with a damp cloth or newspaper in the coldest part of the refrigerator.
Therefore before cooking, keep lobsters in the coldest part of your refrigerator. And to sedate or even dispatch a lobster, chill it in the freezer for 10-15 minutes.
Lobsters and other shellfish have harmful bacteria naturally present in their flesh. Once the lobster is dead, these bacteria can rapidly multiply and release toxins that may not be destroyed by cooking. You therefore minimise the chance of food poisoning by cooking the lobster alive.
Should they die and you've kept them cold, you can still cook them. According to State of Maine food safety experts, dead lobster can be consumed safely up to 24 hours from time of death, if refrigerated properly at or below 38°F (the temperature of the average home refrigerator).
It's not necessary, but if you'd like to kill the lobster before cooking it, do so by driving a knife into the center of its head and pushing down to split it open.
Like crayfish, lobsters can breathe air as long as their gills stay wet. Once they dry out, they can no longer do this. Lobsters don't have lungs or gills ,they absorb oxygen through their otter skin. They can survive just like crawfish in air, but they live in the sea.
Researcher Michael Kuba says that lobsters are “quite amazingly smart animals.” Like dolphins and many other animals, lobsters use complicated signals to explore their surroundings and establish social relationships.
Don't place lobsters in tap water. They are saltwater creatures, and fresh water will kill them. Don't seal lobsters in an air-tight container. Don't store lobsters in stagnant water.
The Modesto, Calif. -based family-owned grocer joins Safeway, Whole Foods Market and Raley's Supermarkets in ending live lobster programs due to declining consumer interest and customer complaints that the practice is inhumane.
Plunging them into boiling water, freezing them or 'drowning' them in fresh water are not humane.
Four rock lobsters are native to Australia: most seafood lovers consider southern rock lobsters, trapped in the cold waters off Tasmania and Victoria, to be the best. The smaller specimens found in supermarkets tend to be western rock lobsters from Western Australia.
However, lots of chefs freeze their lobsters, then kill them before cooking – as an alternative method that kills the bacteria in the same way. And, in fact, many industry experts are actually welcoming the proposed legislation to ban boiling living lobsters – as it seems unnecessary.
What about Australia? Switzerland is not the first place to ban boiling live lobsters; it's already illegal in New Zealand and in the Italian city of Reggio Emilia. In several Australian states, including New South Wales, fish and crustaceans are included in animal cruelty laws.
Lobsters don't have vocal cords, and even if in agony, they cannot vocalise. The high pitched sound made by an overheating lobster is caused by expanding air rushing out of small holes in lobsters' bodies, like a whistle being blown. A dead lobster will “scream” just as loudly as if it was living.
Do Lobsters Feel Pain When Cut In Half? Again, all the evidence shows that they do. And considering their nervous systems cannot go into shock, they are likely to feel this pain for up to an hour after being cut in half.
After letting them freeze, the lobsters were then thawed in 28-degree sea water. The result was that only two came back to life out of thirty lobsters. Isn't that surprising?
An adult lobster can lay up to 100,000 eggs, depending on the size of the female. The female carries her fertilized eggs externally under her tail, attached to her swimmerets, for a period of 9 to 12 months.