So what is imitation crab made of, and what makes it different from the shellfish it was created to substitute? Dive into everything you need to know about imitation crab, where you’ll find it on menus, how to use it in imitation crab recipes, and how its flavor and nutrition stacks up to real crab.

What Is Imitation Crab Made Of?

The answer to what is imitation crab? might surprise you. While it’s not real crab, it’s actually made with real fish protein. Most often, imitation crab is made of surimi, the flesh of white fish—commonly Alaskan Pollock, cod, or tilapia. The fish is deboned, minced into a paste, combined with other natural and artificial flavors, starch and/or egg whites (which work as thickeners), sugar, and salt, then heated and pressed into a tube shape that has a texture reminiscent of crab meat. Crab extract is sometimes added for flavor. Surimi isn’t just used for imitation crab. It also stars in fish sticks and breaded fish patties, and has quite a long history in the culinary world. Japanese chefs dreamed up surimi more than 900 years ago, food historians estimate, as a way to cut down on food waste and make the most of leftover fish pieces. The U.S. Food & Drug Administration (FDA) requires that all surimi products use the term “processed seafood” or “fish protein” on the label or menu to distinguish it from real fish or seafood. Imitation crab must be labeled as such, or as “crab-flavored seafood” or “surimi seafood.” Imitation crab offers several benefits over its classic crab competition:

About ⅓ the cost of real crab. Doesn’t require removing meat from the shell. Can help cut down on food waste and prevent any potential overfishing of crab (although catching sustainable white fish is still required). Tastes very similar to real crab. Available in shredded, stick, or chunk form.

That said, real crab meat comes with several winning qualities, too.

Less processed. Can buy it in a can, which comes pre-shelled and at a fairly low price. Offers about three times as much protein as imitation crab, as well as more vitamins, minerals, and heart-healthy omega-3 fats.

Now that you know what imitation crab is made of and why you might want to try it, how can you tell if your crab is real or not? Similar to how plant-based meat crumbles taste and perform very similarly to regular ground beef, it can be challenging to notice the difference. The best way is to look at the label, restaurant menu, ingredient list, or ask your restaurant server. Imitation crab products should say “imitation” somewhere on the label, and the ingredient list should be longer than just “crab.” Grocery stores and restaurants may also call imitation crab  “crab sticks,” “crab-flavored seafood,” “surimi seafood,” or “krab.”

How to Use Imitation Crab

Besides in seafood salads, sushi rolls, hotpots, and more on restaurant menus, look for imitation crab in the refrigerated or frozen section of your supermarket. It is pre-cooked, no heating is required. But there are a wide variety of hot and cold imitation crab recipes you can add to your menu. It’s already starring in our fan-favorite Crab Rangoon Mozzarella Sticks, DIY Sushirito, and California Sushi Rolls, or try imitation crab to replace regular crab in any of these recipes:

Crab Salad Roasted Corn and Crab Dip  Pretzel-Crusted Air-Fryer Crab Cakes Gazpacho Crab and Pasta Salad  Crab and Asparagus Frittata  Crab Ravioli Filling  Skillet Jalapeño Crab and Corn Dip Fast or Slow Crab Stuffed Peppers  Crab Rangoons  Easy Crab Bisque Crab and Poblano Soup

How to Store Imitation Crab

After purchasing and before cooking with imitation crab, store the imitation crabmeat in the refrigerator or freezer based on where you purchased it. (Store at the same temp until ready to use. Thaw frozen imitation crab in the refrigerator overnight, then proceed with your imitation crab recipe.) Unopened vacuum-sealed packages are usually safe to store in the refrigerator for up to 2 months or in the freezer for up to 6 months. Once opened, aim to polish off the imitation crab within 3 days. Loose imitation crab sold in trays in the seafood department should last 3 to 5 days in the refrigerator.