By Carolyn Malcoun , May 6, 2011 - 11:14am
Because I’m a food writer and recipe developer, my friends and family ask me for lots of cooking and recipe advice. More than half the time, those questions are about seafood, particularly oysters, clams and mussels. What should I buy? How do I know it’s sustainable? How do I know if it’s fresh? What do I do with it once I get home? Oh, and do you have a good recipe for it?
Don’t Miss: The Top 6 Fish & Shellfish You Should Eat—and 6 to Avoid 
I can’t say I blame them. If you haven’t cooked shellfish at home, it can be intimidating the first time. But once you get over that hump, you’ll be doing it all the time. Here’s some expert advice from chef John Ash and the EatingWell food editors to get you more comfortable with shopping for and cooking these briny bits of joy.
Shellfish Shopping Tips
Ask at the fish counter what’s freshest. And use your nose: shellfish should smell like the sea and nothing else. The shells of fresh oysters, clams and mussels should be either tightly closed or just slightly opened. If they’re open and you tap them, they should close. If they don’t close, they’re not alive. Don’t buy them. Make sure your fishmonger displays the National Shellfish Sanitation Program (NSSP) tags. This program oversees commercial shellfish and certifies that it is harvested from waters that are safe. Wild shellfish gathered by amateurs is not regulated by the NSSP.
How to Store Shellfish Right
Remember that fresh shellfish are alive, so you don’t want to smother them in a sealed plastic bag. Place clams, mussels and oysters in a bowl covered with a wet clean towel. Put a few ice cubes on the towel so that it stays damp and keep the bowl in the coldest part of the refrigerator, which is usually on the bottom, in the back. Drain off any water that accumulates in the bowl. Use within a day or two.
How to Prep Shellfish for Cooking
Clams & Mussels—Scrub with a stiff brush under cold running water. Mussels may have barnacles attached; just scrape any off, using the shell of another mussel. Pull off the fuzzy “beard” from each one (some mussels may not have a beard). Discard any that are open and refuse to close when you tap them.
Oysters—Most recipes for oysters call for them to be “shucked.”
Watch It: Let Food Editor Jessie Price Show You How to Shuck an Oyster 
One of my most fond memories of cooking in a restaurant was shucking oysters on New Year’s Eve. The customers ordered so many that that’s all I did for the whole night. Once I “got” it, I had a ball doing it. And it only took the first pop of the oyster hinge to get it. So here’s what you do:
How to Shuck an Oyster
Now Get Cooking!
If you’re intimidated by shucking oysters, this recipe for Spicy Barbecued Oysters (recipe below) is for you. When you grill them, steam builds up inside the shells until they pop open. Then you slather a little garlicky red barbecue sauce on each oyster, put them back on the grill to get hot and bubbly, and you’re done. At a party, bring your oysters to the grill and show your guests how it’s done so they can barbecue their own.
Get the Recipe: Spicy Barbecued Oysters