Is Fish Sauce Kosher? Everything You Need to Know
Fish sauce is a popular ingredient used across many Asian cuisines to add a salty, umami flavor. But is this common condiment actually kosher? As a staple in dishes like pad thai, pho, and stir fries, fish sauce deserves a closer look when it comes to following a kosher diet.
In this comprehensive guide we’ll cover everything you need to know about fish sauce and its kosher status including
- What is fish sauce?
- Understanding kosher dietary laws
- Is fish sauce kosher?
- Fish sauce production methods
- Kosher fish sauce alternatives
- Making your own kosher fish sauce
- Other FAQs
So if you love Asian food but want to keep kosher, read on for the full scoop on fish sauce and kosher rules.
What is Fish Sauce?Fish sauce, known as nuoc mam in Vietnam and nam pla in Thailand, is a popular condiment used across Southeast Asian cuisines It’s made by fermenting small fish like anchovies with sea salt for an extended period of time, usually several months
This long fermentation process draws out the fishy flavors and results in a thin, brown sauce with a very concentrated salty umami or savory taste. A little bit of fish sauce can provide a huge boost of flavor, so it’s frequently used in small amounts.
In addition to pad thai and pho, fish sauce is also common in dishes like fried rice, curries, dipping sauces and more. It brings a depth of flavor that is hard to replicate with other ingredients.
Understanding Kosher Dietary Laws
To understand if fish sauce is kosher, we first need to explore what “kosher” really means. Kosher dietary laws originate from Jewish texts and lay out strict guidelines dictating what foods are permissible to eat.
For a food to be kosher, it must meet criteria for how the source animal is slaughtered and butchered. Kosher rules also prohibit mixing meat and dairy and have specific directives about which animals are considered “clean” versus “unclean.”
Fish is one food category with particular kosher regulations. For a fish to be kosher, it must have fins and scales. Any water-dwelling creatures that lack fins and scales are not considered kosher, including shrimp, lobster, clams, mussels, eel and catfish.
So in order for a fish product like fish sauce to be kosher, it must start with kosher fish and adhere to kosher production methods.
Is Fish Sauce Kosher?
Now we arrive at the core question – can fish sauce be part of a kosher diet? Unfortunately, the majority of fish sauce on the market today is not kosher.
Most fish sauces are made from small fish like anchovies, sardines and mackerel. These types of fish do not have scales, so they do not meet kosher requirements. The starting ingredient already violates kosher laws.
On top of that, traditional fish sauce production methods also fail to meet kosher standards. Fish and salt are simply layered and left to ferment in large wooden barrels or earthenware jars. There is no rabbinical oversight of the production process.
Fish Sauce Production Methods
To understand why fish sauce is generally not kosher, let’s take a closer look at how it’s traditionally made:
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Small fish like anchovies or sardines are layered with sea salt in large containers. A ratio of about 4 parts fish to 1 part salt is commonly used.
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The fish and salt mixture sits and ferments for anywhere from 8 months to over a year. No other ingredients or interventions are added – the salt draws moisture from the fish and initiates fermentation.
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Over time, the fish liquefies into a thick, brown liquid, which is the fish sauce base. The bones and solids are then strained out.
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The fish sauce continues to mature and develop flavor. It may be aged for several more months to over a year before bottling.
As you can see, this process depends solely on fish and salt fermenting together for an extended period of time. There are no rabbinical controls or kosher certification. Both the raw ingredients and hands-off process render fish sauce non-kosher.
Kosher Fish Sauce Alternatives
Don’t worry, avoiding fish sauce doesn’t mean you have to miss out on iconic dishes like pad thai or pho. There are a few easy substitutions that provide similar umami depth without fish sauce:
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Soy Sauce – Use regular soy sauce or coconut aminos for a salty, savory flavor.
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Mushroom Broth – Opt for mushroom broth or mushrooms like shiitakes to add meaty, umami notes.
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Tomato Paste – Add a small amount of tomato paste to mimic the sweet yet savory taste.
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Anchovy Paste – If you can find a kosher-certified version, anchovy paste offers an authentic fishy richness.
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Seaweed – Dried kombu seaweed infuses food with savory seafood flavors. Use sheets to make dashi or sprinkle in flakes.
With a combination of these ingredients, you can replicate the sweet, salty, and meaty notes of fish sauce without compromising kosher status.
Making Your Own Kosher Fish Sauce
If you want to come as close to real fish sauce as possible, try making your own version at home with kosher fish. Here is a simple method:
Ingredients:
- 1 lb kosher fish like mackerel, herring or shad, chopped
- 1⁄4 cup kosher salt
- 1 cup water
- Spices like garlic, pepper, bay leaf (optional)
Process:
- Layer kosher fish and salt in a sanitized glass jar or fermentation vessel. Top with water and any spices you want to add for flavor.
- Stir or shake the mixture to combine thoroughly.
- Cover the jar and let sit at room temperature for 3-6 months, shaking periodically.
- Once finished fermenting, strain out the solids. Refrigerate the resulting fish sauce.
With this straightforward fermentation process, you can feel confident your homemade fish sauce aligns with kosher dietary laws. The aroma and flavor will develop over the long fermentation time.
Other FAQs About Fish Sauce and Kosher Laws
Let’s cover a few more common questions about fish sauce and keeping kosher:
Is there kosher certified fish sauce I can buy?
Yes, some brands like Megachef and Ocean’s Kosher do produce fish sauce that is certified kosher. Check for a hechsher or kosher symbol on the label to confirm.
Can I eat fish sauce if I keep kosher?
No, you should avoid non-kosher certified fish sauce and use substitutes instead. But homemade kosher fish sauce is an option.
What are the key ingredients in fish sauce?
Authentic fish sauce only contains two ingredients – fish and salt. Some modern versions add sugar or MSG.
Does fish sauce have health risks?
In moderation, fish sauce is fine for most people. But be mindful of the high sodium content if you have dietary restrictions.
Can fish sauce be used in non-kosher cooking?
Yes, fish sauce can provide great flavor to all types of dishes. Just avoid it if you strictly follow kosher dietary laws.
The bottom line is that although traditional fish sauce made from anchovies and salt is not kosher, there are still ways to enjoy the unique flavor it brings by making your own or using substitutes like soy sauce, seaweed and tomato paste. With a little creativity, you can find an authentic tasting alternative that aligns with kosher guidelines.
What Makes a Fish Kosher?
Is fish kosher?
*Fish often have multiple names. *Fish that are otherwise kosher are often caught and processed together with non-kosher fish, which means there may be some cross-contamination. For these reasons, the Orthodox Union (the world’s largest kosher-certification agency), which used to publish a kosher fish list, stopped doing so in the early 2000s.
Is fish sauce a probiotic?
Fish sauce is not a probiotic. Fish sauce is made from fermenting salted fish and is rich in umami flavor but does not contain beneficial bacteria.
Is red boat fish sauce kosher?
To Season: A Kosher Fish Sauce. An Orthodox rabbi from Vietnam was there to certify it, so Red Boat’s new fish sauce (nuoc mam) is kosher. It is clear amber, properly funky, richly anchovied and without additives or preservatives. It would lend umami to gefilte fish or chopped liver.
Does my Jewish learning sell kosher fish?
My Jewish Learning is a not-for-profit and relies on your help Donate Shopping for kosher fish can be fairly confusing. The biblical injunction – only fish with fins and scales – sounds fairly straightforward.