Joybuy Insights

Frozen Prawns: Choosing the Right Format for Your Recipe

Frozen prawns let you whip up a quick stir-fry, curry or seafood platter without relying on the day’s catch. But between gross weight, glazing, size grading, shell-on or peeled, and preparation level, the packaging doesn’t always make comparison easy.

Before you head to the checkout, it’s worth avoiding three common pitfalls:

  • Taking the displayed weight as the actual edible quantity: part of the weight may be glazing – that thin layer of ice that protects the prawns.
  • Choosing the wrong size grade: references like 16/20, 31/40 or 71/90 usually indicate the number of pieces per unit of weight. The lower the number, the larger the prawns.
  • Underestimating preparation time: raw prawns with heads and shells will require more work than those that are already peeled and deveined. Cooked prawns, on the other hand, only need gentle reheating.

The Key Points to Check Before You Buy

1. Species, Size Grade and Presentation

Black Tiger prawns (Penaeus monodon) offer firm flesh and a very recognisable appearance. They are especially popular for grilling, seafood platters and curries. Vannamei prawns (Litopenaeus vannamei) come in many formats: whole, headless, shell-on, peeled or deveined.

Choose your size grade according to the recipe:

  • 16/20 or 21/25: large pieces for grilling, pan-frying or a neat plate presentation.
  • 26/30 or 31/40: a versatile size for curries, stir-fries and family meals.
  • 41/50 or 71/90: small prawns ideal for salads, pasta, fried rice or garnishes.

The terms HOSO refer to prawns with head and shell on. HLSO means they are headless but still have the shell on. EZP indicates an easy-to-peel presentation, while P&D means the prawns are peeled and deveined.

2. Net Weight and Glazing

Glazing protects the prawns during storage, but it doesn’t end up on your plate. So check the net weight, the proportion of ice and the approximate number of pieces.

A bag might, for example, show a gross weight of 1 kg when the actual amount available after defrosting is lower. A product stating 25% glazing cannot be directly compared to another that doesn’t specify this information.

For a restaurant, caterer or professional use, compare the price per kilogram excluding glazing and assess the yield after peeling. At home, bags of 500 to 800 g are often easier to portion out and store.

3. Product Condition and Allergens

Raw prawns must be cooked through. The instructions on the packaging should always take priority, especially for breaded or pre-cooked products. Cooked prawns are handy in a salad or pasta, but should be reheated carefully when the instructions require it.

Crustaceans are among the allergens that must be declared by law. Some products also contain wheat, soya or sulphites. A product like ebi fry, for example, may combine prawn, batter and panko breadcrumbs – so take the time to check the ingredients list.

Store products at −18 °C or below, respect the date on the pack and never refreeze a defrosted item. Depending on the manufacturer’s instructions, slow defrosting in the fridge or under cold running water may be suitable. However, avoid defrosting prawns in their sealed packaging if the label advises against it.

Which Product Suits Your Profile?

Recommended for: Budget-conscious beginners
Asian Choice Frozen Breaded Prawns 250 g

Asian Choice Frozen Breaded Prawns 250 g

Why this choice suits this profile: At 250 g, this size is ideal for a first try or a quick meal, without having to prepare the crustaceans yourself.

How this product avoids the pitfall

The pieces are already coated and frozen in easy-to-use portions. Bear in mind, though, that the breading adds to the total weight.

Main advantage and key strengths

An ebi fry-style product that can be cooked straight from frozen, following the instructions. Contains crustaceans and gluten.

Recommended for: Premium enthusiasts
King Black Tiger Prawns 16/20 – 1 kg

King Black Tiger Prawns 16/20 – 1 kg

Why this choice suits this profile: Their 16/20 size grade and HOSO presentation lend themselves to a polished plate, grilling or a seafood platter.

How this product avoids the pitfall

The product page specifies the size grade and states 20% glazing. So you can more accurately assess the actual usable weight.

Main advantage and key strengths

Whole Black Tiger prawns, size grade 16/20 pieces per kilogram, suitable for grilling, steaming and curry.

Recommended for: Specific uses and heavy users
Asian Choice Vannamei Prawns P&D 71/90 700 g

Asian Choice Vannamei Prawns P&D 71/90 700 g

Why this choice suits this profile: Already peeled and deveined, these P&D prawns cut down on kitchen prep – a real bonus for stir-fries, curries and repeated use.

How this product avoids the pitfall

The presentation and size grade are clearly stated. Still, compare the net weight and number of pieces against your serving needs.

Main advantage and key strengths

Vannamei prawns P&D, size grade 71/90, suitable for stir-fry, salad, pasta, pan-frying and curry.

Looking for other options?

We’ve selected a full range, updated in real time, of products that meet these selection criteria as well as European food safety standards.

Preparing and Storing Frozen Prawns

To preserve their texture, defrost the prawns gradually in the fridge when the product allows it. Pat them dry with kitchen paper before stir-frying or grilling to remove excess water. Prawns destined for the grill can keep their shells on, while P&D formats are perfect for quick preparations.

Breaded prawns are often cooked straight from frozen, in the oven, in a pan or deep-fried, according to the label instructions. Never refreeze a product that has already been defrosted. To vary your meals, you can also combine prawns with frozen crab and frozen mussels in your seafood recipes.

Frequently Asked Questions About Frozen Prawns

Can you cook prawns while still frozen?

Yes, for certain products – particularly breaded prawns or items where the packaging specifies cooking without defrosting. For standard raw prawns, follow the method on the label and check that the flesh is opaque and thoroughly cooked.

How long can you keep prawns in the freezer?

Store them at −18 °C or below, up to the date shown on the packaging. After defrosting, place them in the fridge and consume them within the time recommended by the manufacturer. Never refreeze a defrosted product.

Which size grade should I choose for a stir-fry or curry?

Grades 26/30 to 41/50 are generally the most practical for a stir-fry or curry: the prawns remain clearly visible while cooking quickly. Smaller grades are better suited to salads and garnishes, while 16/20 or 21/25 are the ones to go for when the prawn is the star of the plate.