Determining the correct portion of scallops is a blend of practical measurement and understanding your ingredients. The size of the scallop, its type, and whether it's a small starter or a substantial main course are all critical factors in calculating how many to buy and serve. Getting this right prevents waste, manages your budget, and ensures every guest gets a perfectly satisfying portion.
The Core Formula for Scallop Portions
The most reliable way to calculate portions is by weight, then cross-reference with the scallop's size. A standard rule of thumb is to allocate 4 to 6 ounces (about 115-170g) of scallop meat per person for a main course and half that amount for an appetizer. The number of scallops that make up this weight will vary dramatically depending on their size.
Scallop Sizing Explained
Scallops are often sold with a "count-per-pound" designation, which indicates how many individual scallops you will get in a single pound. The lower the number, the larger the scallop.
- U/10 (Under 10): These are jumbo or colossal sea scallops, with fewer than 10 per pound. A 4 oz main course portion could be just 2 to 3 of these impressive mollusks.
- 10/20: Large sea scallops, suitable for searing. A main course might feature 4 to 6 of these.
- 30/40: Medium-sized sea scallops, often used in sautés or pasta. A main course portion could be 6 to 8 scallops.
- 40/60+: Smaller bay scallops, known for their sweet flavor. These are excellent for stir-fries, stews, or salads, and you would need a larger quantity to reach the target weight.
Appetizer vs. Main Course: Adjusting the Count
The role of scallops in your meal dictates the portion size. When served as a starter, you want to leave room for the subsequent courses. For a main, the scallops take center stage and need to be a more substantial portion.
- As an appetizer: Target 2 to 3 ounces per person. This typically equates to 3-4 large sea scallops (10/20) or a smaller cluster of bay scallops.
- As a main course: Aim for 4 to 6 ounces per person. This means 4-6 large sea scallops (10/20) or a more generous amount of bay scallops to complement other ingredients like pasta or risotto.
Dry Scallops vs. Wet Scallops and Shrinkage
Not all scallops are created equal, and their preparation can significantly impact your final yield. This is where the difference between "dry" and "wet" scallops becomes crucial.
- Dry Scallops: These are natural, untreated scallops. They have a sweet, briny flavor and caramelize beautifully when seared. Since they do not have added water weight, they will shrink less during cooking, meaning you get more meat for your money.
- Wet Scallops: These have been soaked in a phosphate solution to extend their shelf life and plump them up. This adds significant water weight, which releases during cooking and makes them difficult to sear properly. This water loss means you will need to purchase a greater quantity to achieve the same post-cooking weight as dry scallops.
Tips for Buying Scallops
- Buy dry: Opt for dry scallops whenever possible for superior flavor, texture, and value, especially for searing.
- Observe the size: Decide on your recipe's needs. Large sea scallops are best for pan-searing, while smaller bay scallops are ideal for faster cooking applications.
- Plan ahead: Scallops are best cooked fresh. Budget for the exact amount you need, as they don't reheat well.
- Check the source: When purchasing whole scallops in the shell, ensure they come with an identification mark from an approved establishment to guarantee safety.
Comparison of Scallop Types for Serving
| Feature | Sea Scallops (e.g., 10/20) | Bay Scallops (e.g., 40/60+) | 
|---|---|---|
| Size | Large, up to 2 inches diameter | Small, about ½ inch diameter | 
| Texture | Meaty and firm | Tender and delicate | 
| Flavor | Rich ocean essence | Sweeter flavor | 
| Best For | Pan-searing, grilling, entrees | Sautés, stews, salads, pasta | 
| Portion Size (Entree) | 4-6 scallops (approx. 4-6 oz) | Larger quantity (approx. 4-6 oz) | 
Expert Techniques for Searing
To get that perfect golden crust on your sea scallops, the cooking technique is as important as the portion size. Starting with a very hot pan and patting the scallops dry are essential steps. For an in-depth guide on the process, including precise temperature control and timing, follow expert advice on how to properly sear scallops. For expert searing techniques, read this guide.
Conclusion
The number of scallops you can serve per person is ultimately determined by your serving intentions. For a special entree, plan on 4-6 ounces of large, dry-packed sea scallops. If you are creating a simple appetizer, 2-3 ounces will suffice. For smaller bay scallops, adjust your count upward to match the total weight. By paying attention to scallop size and opting for dry-packed varieties, you can confidently calculate the perfect portion for any culinary occasion.