Most Common Kosher Fish: A Practical Grocery Store Guide
Keeping kosher at the fish counter doesn’t have to be complicated. Most mainstream grocery stores carry a solid selection of kosher fish species. This guide covers the most commonly available kosher fish, what to look for when buying fresh or packaged fish, and key rules for processed and restaurant fish.
For the full background on what makes any fish kosher under Jewish law, see The Complete Guide to Kosher Fish.
How to Shop for Kosher Fish
- Whole fish or skin-on fillets: If you can see the scales and identify the species as kosher, a kosher certification symbol is generally not required. According to the Orthodox Union, the visible scales serve as confirmation.
- Skinless fillets or processed fish: When the skin and scales have been removed, purchase from a kosher-certified source or look for a hechsher from the OU, OK, Star-K, or CRC.
Commonly Available Kosher Fish Species
salmon
One of the most commonly purchased kosher fish in America. Atlantic and Pacific salmon are both kosher. Available fresh, frozen, smoked, and canned — smoked and canned versions should carry kosher certification.
tuna
A kosher species with small, detachable scales. Fresh tuna steaks work well skin-on. Canned tuna requires a kosher certification — major brands including StarKist and Bumble Bee offer certified options.
tilapia
Kosher, inexpensive, and available in virtually every supermarket. Its scales are clearly visible, and its mild flavor works in a wide range of preparations.
flounder and Sole
Both are kosher flatfish with qualifying scales. Often sold as skinless fillets, so purchasing from a certified source is advisable when scales are not visible.
halibut
A firm white fish, kosher, and widely available. Often sold skinless — look for kosher certification or skin-on presentation for confirmation.
Cod
Kosher and historically important in both European and Jewish cuisine. Battered or breaded cod products (fish sticks) require kosher certification due to batter ingredients and shared equipment.
Trout
Rainbow trout and other varieties are kosher. Available fresh at most grocery stores with a full seafood counter. Smoked trout should carry a hechsher.
Carp
The traditional base for gefilte fish. Whole carp is available in many markets, particularly in areas with large Jewish communities. Jarred gefilte fish requires kosher certification.
Herring
A deeply traditional Ashkenazi food, served pickled, smoked, or creamed. All herring varieties are kosher. Prepared herring products require certification because of added ingredients.
Bass
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Processed and Packaged Fish
Processed fish — canned, smoked, battered, or prepared — requires kosher certification regardless of species. Processing introduces variables including shared equipment, non-kosher oils, and flavorings. crab/" class="kf-autolink" title="Is Imitation crab kosher? — KosherFish.co">Imitation crab (surimi), even when made from pollock (a kosher fish), is generally not kosher because it is produced on equipment used for shellfish and may contain non-kosher flavoring agents.
Kosher Fish in Restaurants
Even a kosher species can become non-kosher in a restaurant. Fish cooked in pans or ovens previously used for non-kosher food may absorb non-kosher residues. Restaurants with reliable kosher certification provide a higher level of assurance than simply ordering a kosher species at a non-certified restaurant.
Frequently Asked Questions
Do I need a kosher symbol to buy fresh fish at the supermarket?
For fresh whole fish or skin-on fillets where the scales are clearly visible, a kosher symbol is generally not required — the scales confirm the fish’s status. For skinless fillets, purchasing certified fish is the more reliable approach.
Is canned salmon kosher?
Salmon is a kosher species, but canned salmon should carry a kosher certification to ensure the processing facility and any added ingredients meet kosher standards.
Is imitation crab kosher?
Generally no. Surimi is made from pollock (a kosher fish) but is typically produced on equipment shared with shellfish and may contain non-kosher flavorings. Most kosher authorities do not permit uncertified surimi.
Can I eat kosher fish at a non-kosher restaurant?
It depends on your level of observance. Even a kosher species may be cooked in equipment used for non-kosher food. Those who observe kosher strictly eat fish only at certified kosher restaurants.
Where can I find a complete list of kosher fish species?
See The Complete Guide to Kosher Fish for a full breakdown. The Orthodox Union also maintains a kosher fish list at ou.org.