Which crab has the most meat: mud, sand, or spanner?

Mud crab has the highest meat yield at roughly 30–35% of body weight, thanks to its large claws and dense body. Sand crab yields around 20–25%, and spanner crab the least at about 18–25% because of its thin body and small claws. Mud crab also has the largest individual chunks of meat, especially in the claws.

What is the difference between a mud crab and a sand crab?

Mud crab is larger (often 0.8–2kg), with a smooth dark green-brown shell and huge meaty claws; the meat is dense, rich, and slightly nutty. Sand crab (blue swimmer/blue manna) is smaller (usually 300–600g), with a mottled blue-green shell, paddle-shaped back legs for swimming, and sweeter, more delicate meat. Mud crab is the premium choice; sand crab is more affordable and excellent value.

Which crab tastes the best?

It depends on what you want. Spanner crab has the sweetest, most delicate meat. Mud crab has the richest, most satisfying meat with the best texture for cracking and sharing. Sand crab sits between them: sweet and clean, and the best value of the three. For pure flavour intensity most people rank mud crab first; for sweetness, spanner crab.

Is a sand crab the same as a blue swimmer crab?

Yes. In Queensland the blue swimmer crab (Portunus armatus) is commonly called the sand crab. In other states and contexts it's also called blue manna or blue swimmer. They are the same animal: a smaller, sweet-meated swimming crab with distinctive paddle-shaped rear legs.

Which crab is best for chilli crab or Asian-style cooking?

Mud crab is the classic choice for chilli crab, crab in XO sauce, and black pepper crab because its large claws and dense meat stand up to bold sauces and the shell holds the sauce beautifully. Sand crab also works well and is more economical for a big saucy banquet. Spanner crab is too delicate for heavy sauces. Save it for salads and lighter dishes.

Which crab is the cheapest?

Sand crab is generally the most affordable of the three and offers excellent value: sweet meat at a lower price per kilo than mud crab. Mud crab is the premium-priced option, with large hard-shelled crabs commanding the highest prices. Spanner crab sits in between, though picked spanner crab meat is premium-priced because of its low yield.

Which crab should a beginner buy?

For a first-time crab cook, sand crab is forgiving and affordable, and cooked sand crab is ready to eat with minimal work. If you want the full experience of cracking a big crab, buy a single mud crab. If you want the easiest possible option, buy picked crab meat or cooked crab and skip the live-cooking step entirely.

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Mud Crab vs Sand Crab vs Spanner Crab: Which to Buy?

The Tasman Star Team31 May 20265 min read

mud crabsand crabspanner crabcrab guideGold Coast seafood

Mud Crab vs Sand Crab vs Spanner Crab: Which to Buy?

Mud Crab vs Sand Crab vs Spanner Crab: Which Should You Buy?

Quick answer: Mud crab has the most and richest meat (~30–35% yield) and is best for cracking and Asian-style sauces; it's the premium pick. Sand crab (blue swimmer) is smaller, sweet, and the best value (~20–25% yield). Spanner crab has the sweetest, most delicate meat but the lowest yield (~18–25%). Save it for salads and lighter dishes.

Key facts:

Mud crab: largest (0.8–2kg), richest meat, highest yield (~30–35%), premium price, best for chilli crab
Sand crab (blue swimmer): smaller (300–600g), sweet, best value, ~20–25% yield
Spanner crab: flat, sweetest and most delicate meat, lowest yield (~18–25%)
Most meat by weight: mud crab
Sweetest meat: spanner crab
Best value: sand crab
All three are local to Queensland / Gold Coast waters

The Three Crabs at a Glance

	Mud crab	Sand crab (blue swimmer)	Spanner crab
Typical weight	0.8–2kg	300–600g	400–700g
Shell	Dark green-brown, smooth, hard	Mottled blue-green, paddle legs	Flat, reddish-orange
Claws	Large, very meaty	Small–medium	Small
Meat character	Dense, rich, slightly nutty	Sweet, delicate, clean	Sweetest, fine, flaky
Meat yield	~30–35%	~20–25%	~18–25%
Price tier	Premium	Best value	Mid–premium (meat)
Best for	Cracking, chilli/XO crab	Everyday eating, big saucy feeds	Salads, pasta, delicate dishes

Mud Crab: The Rich, Meaty Premium

Mud crab (Scylla serrata) is the heavyweight. Big hard-shelled crabs carry enormous claws packed with dense, slightly nutty meat that holds its texture even in a bold sauce. This is the crab for chilli crab, black pepper crab, and crab in XO, and the one to crack and share with bread and lemon when you want the crab itself to be the event.

Best meat yield of the three (~30–35%)
Biggest individual chunks of meat, especially claws
Premium price: you're paying for size and density
Sold live for same-day cooking

→ Learn to cook it: how to cook a live mud crab.

Sand Crab (Blue Swimmer): The Sweet, Smart Value

The sand crab, known in other states as the blue swimmer or blue manna (Portunus armatus), is smaller and lighter, with a beautiful mottled blue-green shell and flat paddle-shaped rear legs for swimming. The meat is sweet, clean, and delicate, and it's the best value of the three.

Sand crab is the everyday crab: affordable enough for a big saucy banquet, sweet enough to enjoy simply. Cooked sand crab is widely available ready to eat, which makes it a great low-effort option.

~20–25% meat yield
Most affordable per kilo
Excellent in chilli crab when you're feeding a crowd on a budget
Available cooked (ready to eat) and raw

Browse cooked crabs at Tasman Star →

Spanner Crab: The Sweetest, Most Delicate

The flat, reddish spanner crab (Ranina ranina), also called the frog crab, has the sweetest meat of any Australian crab: fine, flaky, faintly floral, and snow-white. The catch is the low yield and small claws, so the meat is precious.

Because it's so delicate, spanner crab is wasted under a heavy sauce. It shines in crab salads, sandwiches, and pasta, dressed simply with lemon and good mayonnaise. Many people buy it as picked meat to skip the fiddly extraction.

→ Full guide: live spanner crabs: buying, cooking and eating.

Which Crab for Which Dish?

You want to make…	Best crab	Why
Singapore chilli crab	Mud crab	Big claws, dense meat, shell holds sauce
A budget-friendly crab banquet	Sand crab	Best value, sweet, takes sauce well
Crab salad / crab sandwich	Spanner crab (picked)	Sweetest, finest meat
Crab pasta (linguine)	Spanner or sand crab meat	Delicate sweetness, easy to fold through
Cracked crab with bread & lemon	Mud crab	The classic sharing experience
Easiest possible (no cooking)	Cooked sand crab or picked meat	Ready to eat

Which Crab for Which Budget?

Tightest budget, best value: sand crab
Mid-range, want something special: cooked spanner crab, or a single mud crab to share
Splurge / celebration: large live mud crab, or premium picked spanner crab meat

How Much Meat Will You Actually Get?

Yield matters more than headline weight. From a 1kg crab:

Crab	Approx. picked meat from 1kg
Mud crab	300–350g
Sand crab	200–250g
Spanner crab	180–250g

If you just want the meat for a dish, picked crab meat is often the most economical once you factor in the work: no waste, no cracking, no picking.

Buying Crab on the Gold Coast

Tasman Star Seafood stocks all three crabs (live, cooked, and as picked meat) at both stores:

Varsity Lakes: 20 Casua Dr, (07) 5522 1221
Labrador: 5–7 Olsen Ave, (07) 5529 2500

Stock is seasonal and the live crabs sell fast, so call ahead for live mud or spanner crab. Gold Coast home delivery runs 7 days a week.

→ Then learn to handle it: how to clean and prepare crab and how to keep live crabs alive before cooking.

Browse live seafood → · Browse cooked crabs →

Written by

The Tasman Star Team · Gold Coast fishmongers

Articles from the fishmongers at Tasman Star Seafood. We source, fillet and sell fresh seafood on the Gold Coast seven days a week, and everything we publish comes from what we handle in the shop.

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