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Frequently Asked and Health Related Questions

What's the shelf life of Red Boat Fish Sauce?
Red Boat products are labeled with a Best By date on the label. This date 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. If a bottle is accidentally left out overnight, the product will not be harmed in any way.

What are the ingredients for each product?
The two ingredients in every Red Boat fish sauce are fresh caught wild black anchovies and sea salt.

What is the difference between 40N and 50N?
Degrees N is an industry standard to measure the number of grams of nitrogen per liter of fish sauce which relates to the protein level. The highest quality fish sauces are greater than 30N with the flavor becoming more rich and complex with larger N designation.

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

Do our products contain MSG?
No. Our product also does not contain hydrolyzed wheat or soybean proteins which are hidden sources of free glutamates.

Have our 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. See the product test report here

Do our products contain any type or form of peanuts or shellfish?

What are the clear crystals in 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 some 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 attract each other, and form “clouds” of protein within the bottle. These clouds do not affect the quality of the fish sauce. While it may be somewhat unattractive, it is completely safe*. However, if you are not absolutely satisfied with this product, please send an email to and we will replace or refund your purchase. *Microbiological tests conducted by an independent laboratory.

Are other fish sauce brands labeled “Phu Quoc” authentic?
Look at the label carefully. If the product does not say “Made in Phu Quoc” or “Product of Vietnam” it is likely not authentic. Many knock-offs are made or processed in Thailand or Hong Kong.

Is Red Boat approved by the Feingold Association?
Yes, it 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 fragrance.

Still have a question?
Contact us at with your question. We will include it here. Thanks!


Red Boat Nutrition Facts

Whole 30 Approved
Paleo Whole 30 Approved

Red Boat is an approved product
of the Feingold Association

Red Boat Fish Sauce Contact Info