Deciphering the 16/20 Prawn Count
When purchasing seafood, numbers like 16/20 can be confusing without context. This labeling system, known as the count-per-pound, indicates the number of prawns you can expect to find in a single pound (or sometimes kilogram, depending on the market). A smaller number in the count signifies a larger individual prawn. Thus, 16/20 prawns are a substantial size, landing firmly in the extra-jumbo or super jumbo category. This contrasts with smaller varieties, such as 41/50 (medium) or 51/60 (small), where you get many more prawns per pound.
Understanding the size is crucial because it directly impacts cooking time and suitability for different recipes. Extra-jumbo 16/20 prawns have a firm, meaty texture that holds up well under heat, making them ideal for dishes where they are the star ingredient. Their size ensures they remain juicy and tender even when grilled, barbecued, or sautéed, rather than overcooking quickly like smaller prawns.
Common Prawn Size Categories
- U/10: Colossal, fewer than 10 prawns per pound.
- 11/15: Jumbo, 11-15 prawns per pound.
- 16/20: Extra-Jumbo/Super-Jumbo, 16-20 prawns per pound.
- 21/25: Jumbo, 21-25 prawns per pound.
- 31/40: Large, 31-40 prawns per pound.
- 41/50: Medium, 41-50 prawns per pound.
- 51/60: Small, 51-60 prawns per pound.
The Nutritional Power of Extra-Jumbo Prawns
Prawns are not only delicious but are also a nutritional powerhouse, making them a superb addition to any health-conscious diet. They are a lean source of high-quality, complete protein, providing all nine essential amino acids. A typical 100-gram serving of prawns contains a significant amount of protein—around 20-25 grams—with very few calories and minimal fat.
Essential Vitamins and Minerals
Beyond macronutrients, prawns offer a wealth of micronutrients:
- Selenium: Prawns are an excellent source of this powerful antioxidant, which helps protect cells from damage and supports immune function.
- Vitamin B12: Essential for nerve function and the production of red blood cells, Vitamin B12 is abundant in prawns.
- Iodine: Important for thyroid health, prawns are a rich source of this vital mineral.
- Omega-3 Fatty Acids: Prawns contain beneficial omega-3s, which are crucial for heart health and can help reduce inflammation.
The Cholesterol Conversation
For years, prawns and shrimp were unfairly criticized for their cholesterol content. However, research has shown that moderate prawn consumption does not negatively impact lipoprotein profiles in most people. The high levels of beneficial omega-3 fatty acids help balance any dietary cholesterol, making prawns a heart-healthy choice when prepared without excessive saturated fat, such as from butter or deep-frying.
Comparison of Prawns to Other Proteins
| Nutrient (per 100g) | Prawns (Raw) | Chicken Breast (Cooked) | Steak (Cooked, Lean) | 
|---|---|---|---|
| Calories | $\sim$100-115 | $\sim$165 | $\sim$250 | 
| Protein | $\sim$23-25g | $\sim$31g | $\sim$29g | 
| Total Fat | $<1-2g$ | $\sim$3.6g | $\sim$15g | 
| Saturated Fat | $<1g$ | $\sim$1g | $\sim$6g | 
| Omega-3s | High | Low | Low | 
| Sodium | $\sim$183mg | $\sim$74mg | $\sim$58mg | 
Cooking with 16/20 Prawns: Techniques and Recipes
The extra-jumbo size of 16/20 prawns makes them particularly suitable for specific culinary applications. Their size provides a satisfying, meaty texture that is perfect when the prawn is meant to be the star of the dish, rather than blending into the background of a soup or pasta.
Best uses for 16/20 prawns:
- Grilling and Barbecuing: Their large size makes them easy to thread onto skewers without falling apart and allows for even cooking over high heat.
- Sautéing: Extra-jumbo prawns take well to a quick sear in olive oil with garlic, allowing them to brown beautifully while remaining juicy inside.
- Appetizers: Whether as a shrimp cocktail or a standalone appetizer, their impressive size makes for an elegant presentation.
- Main Entrées: Serve them as the centerpiece of a dish, perhaps with pasta or a simple side of vegetables, for a meal that feels both gourmet and healthy.
Portion Control and Meal Planning
To maximize the nutritional benefits of prawns while keeping calorie intake in check, portion control is key. A standard serving of seafood is generally considered to be 3 to 4 ounces of cooked product, or about the size of a deck of cards. For extra-jumbo 16/20 prawns, a typical serving might be 4-5 cooked prawns, providing a generous amount of lean protein.
To integrate prawns into your diet, consider swapping higher-calorie proteins like steak for a prawn-based meal twice a week. Instead of relying on deep-frying, opt for healthier cooking methods like steaming, grilling, or baking, which add minimal calories while retaining flavor. Serving prawns with plenty of vegetables or over a modest portion of brown rice can create a balanced, satisfying meal that supports your health goals.
Conclusion: Making Informed Choices for a Healthy Diet
Understanding seafood labeling, such as how big is 16/20 prawns, is an important step in making informed nutritional choices. This extra-jumbo size offers a versatile and delicious source of lean protein, essential vitamins, and heart-healthy omega-3s. By selecting the right size for your recipe and practicing mindful portion control and cooking methods, you can easily incorporate prawns into a healthy Nutrition Diet and enjoy both the flavor and health benefits of this popular seafood. For more information on seafood recommendations, consult reliable sources like the FDA's guide on choosing fish and shellfish.