Frequently-Asked Questions

What's the shelf life of Red Boat Fish Sauce?

All Red Boat products are labeled with a best-by date on the label that is 36 months (three years) from the date of manufacture. After opening, we recommend using the contents within a year. For optimum freshness it is best to refrigerate the product after opening; however, if a bottle is accidentally left out overnight, the product will not be harmed in any way.

What are the ingredients of each product?
Unless otherwise specified, every Red Boat product is made of just two ingredients: fresh-caught wild black anchovies and sea salt.

What's 40°N?

Degrees N is an industry standard to measure the number of grams of nitrogen per liter of fish sauce, and helps determine the quality of the product.

Are your products gluten-free?

Yes. Our sauces do not contain any wheat or wheat by-products and are produced in a gluten-free facility.

Do your products contain MSG?

No. Red Boat never uses flavor enhancers like MSG, hydrolyzed wheat, or soybean proteins.

Have your products been tested for mercury and lead?

Yes. There is no mercury or lead in our products. The waters off Phu Quoc island are some of the purest ocean waters in the world. You can see the product test report here.

Do your products contain major allergens such as peanuts or shellfish?

Red Boat products only contain fish and sea salt. Our production line and our products do not contain milk, eggs, shellfish, tree nuts, peanuts, wheat, or soy.

What are the clear crystals at the bottom of my bottle?

Natural sea salt may occasionally crystallize on the bottom of the bottles of Red Boat sauces. This is a natural process and does not affect the product quality in any way.

My fish sauce has particles floating in it. Is this normal?

Red Boat Fish Sauce contains a high protein content which can undergo a natural process called “protein precipitation” when exposed to changes in temperature. These insoluble precipitated proteins may sometimes attract to form clouds of protein within the bottle. These clouds do not affect the safety or quality of the fish sauce; however, if you dissatisfied with this product, please send an email to and we will replace or refund your purchase.  (SOURCE: *Microbiological tests conducted by an independent laboratory.)

Are other fish sauce brands labeled “Phu Quoc” authentic?

Inspect label carefully: If the product does not say “Made in Phu Quoc” or “Product of Vietnam,” it is likely not authentic. Many sub-premium brands are made or processed in Thailand or Hong Kong.

Is Red Boat approved by the Feingold Association?

Yes. Red Boat has been accepted on the Feingold program and is free of synthetic colors and flavors, the preservatives BHA, BHT, and TBHQ, as well as synthetic fragrances.

Still have a question?

Contact us at  with your question. We will include it in our FAQs. Thanks!



Added to cart successfully!