Crab 101: Mud Crab vs Flower Crab vs Snow Crab vs King Crab, Singapore's Complete Buying Guide
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Introduction: Why Crab?
Ask anyone what Singapore's national dish is, and chili crab will come up within the first breath. Crab holds a special place at our tables: cracked open with bare hands over newspaper, dunked in black pepper sauce at a zi char stall, or simmered into a fragrant crab bee hoon soup on a lazy Sunday. It is celebratory food, sharing food, and for many families, the centrepiece of a good meal out or a good meal in.
Yet "crab" at the seafood counter can mean several very different creatures, from local flower crab to imported Sri Lankan mud crab to Alaskan king crab legs. Prices swing wildly, from around $15 a kilogram to well over $80. This guide walks through the main types sold in Singapore, what makes each one different, and how to pick the right crab for your dish.
Types and Origins of Crab Compared
Sri Lankan Mud Crab
The gold standard for chili crab and black pepper crab in Singapore. Mud crab has thick, sweet meat and large, meaty claws capable of cracking open shells in the wild, which is exactly why they taste so good on your plate. Most of Singapore's mud crab supply is imported live or frozen from Sri Lanka and Indonesia.
Local Flower Crab (Blue Swimmer Crab)
Smaller and more delicate than mud crab, flower crab (also called blue swimmer crab) has sweet, tender meat that shines in simpler preparations like steaming or a light curry. It is caught in Southeast Asian waters, including around Singapore and Malaysia, and tends to be more affordable than mud crab.
Snow Crab
Imported frozen from colder waters (Japan, Russia, and Canada are common sources), snow crab is prized for its long, slender legs packed with sweet, stringy meat that pulls apart easily. It is typically sold pre-cooked and frozen, making it a convenient option for steamboat or a quick seafood platter.
Alaskan King Crab
The largest and most premium of the group, with thick legs yielding generous chunks of rich, buttery meat. King crab is wild-caught in the cold waters of Alaska and Russia, and its price reflects both the difficulty of the harvest and the sheer amount of meat per leg. This is the splurge option for a special occasion.
Crab Comparison Table
| Type | Typical Origin | Meat Texture | Price Range (per kg) | Best For |
|---|---|---|---|---|
| Sri Lankan Mud Crab | Sri Lanka, Indonesia | Thick, sweet, meaty claws | $28 to $45 | Chili crab, black pepper crab |
| Local Flower Crab | Singapore, Malaysia | Delicate, tender | $15 to $24 | Steaming, light curry, crab bee hoon soup |
| Snow Crab | Japan, Russia, Canada | Long, stringy, sweet | $30 to $48 | Steamboat, seafood platters |
| Alaskan King Crab | Alaska, Russia | Thick, rich, buttery | $60 to $90+ | Special occasions, premium platters |
How to Choose the Right Crab
- For the classic chili or black pepper crab experience: go with Sri Lankan mud crab. Its thick claws hold up to a bold sauce and deliver the most satisfying cracking experience.
- For a lighter, home-cooked meal: local flower crab works beautifully steamed with just garlic and a splash of Shaoxing wine.
- For steamboat or a fuss-free platter: pre-cooked frozen snow crab legs need no cracking skills and reheat in minutes.
- For a birthday or anniversary dinner: Alaskan king crab legs make an instant centrepiece with minimal cooking required.
Quality Checks Before You Buy
- If buying live, the crab should be active, with legs moving and claws responsive when handled (carefully).
- A heavier crab for its size usually means more meat inside; a suspiciously light crab may be mostly shell and water.
- Check the underside (apron): a firm, tightly closed apron is a good sign, while a soft or loose one can mean the crab is past its best.
- For frozen crab, look for minimal ice buildup inside the packaging and a clean, briny smell rather than any sour or ammonia-like odour.
- Shell colour should look natural and consistent; unusually pale or discoloured patches can indicate poor handling.
How to Cook Crab
Singapore Chili Crab
The iconic preparation: crab wok-fried in a sweet, spicy, tomato-and-chili gravy, finished with a swirl of beaten egg. Best made with mud crab for its thick, sauce-holding claws. Serve with fried mantou to mop up every drop of gravy.
Black Pepper Crab
Wok-fried with generous amounts of cracked black pepper, butter, and garlic for a punchy, savoury dish that lets the sweetness of the crab meat come through.
Steamed Crab with Garlic and Wine
A lighter approach that suits flower crab especially well: steam whole with garlic, ginger, and a splash of Shaoxing wine for a clean, natural flavour.
Crab Bee Hoon Soup
Simmer crab (shell-on pieces work well) with rice vermicelli, evaporated milk, and a good chicken or seafood stock for a comforting, home-style soup that Singaporean families swear by.
Where to Buy Quality Crab in Singapore
Pan Ocean has sourced fresh and frozen seafood direct since 1992, bringing Sri Lankan mud crab, local flower crab, snow crab, and Alaskan king crab straight to your door. Skip the guesswork and browse our full seafood range today.
Free delivery above $60. Order by 4PM for next-day delivery.