Joybuy Insights

Buying Fish Sauce: A Guide to Authentic Asian Seasoning Sauces

Anyone looking to buy fish sauce will find a wide range of bottles from Thailand, Vietnam and other South-East Asian countries in the UK market. However, products can differ considerably in fish content, salt levels, sweetness, fermentation method, bottle size and intended use. Eye-catching packaging or a claim of “authenticity” is therefore not enough to make the right choice.

For home cooks, three typical buying barriers are particularly relevant:

  • Unclear ingredient lists: Some products contain a high proportion of anchovy extract, while others also include sugar, flavour enhancers or additional seasoning ingredients.
  • Choosing the wrong size: A 700 ml fish sauce can be practical for regular cooking, while a 200 or 300 ml bottle may be more suitable for occasional use, as it will not remain open for as long.
  • Confusing fish sauce with seasoning or ready-made sauce: Fermented fish sauce is a concentrated base seasoning. Papaya salad dressing or a spicy fish preparation, on the other hand, is already tailored to a specific use.

Which Criteria Matter When Buying Fish Sauce

1. Check the Fish Type and Fish Content

In a classic Asian fish sauce, anchovy extract is often the key ingredient. The label should clearly state which fish is used and in what quantity. Examples from the selection include:

  • Squid Brand Fish Sauce 300 ml: According to the product information, it consists of 77% anchovy extract, as well as water, salt and a little sugar.
  • X.O Fish Sauce 750 ml: According to the product information, it contains 70% anchovy extract, salt, water and sugar.
  • King Lobster Fish Sauce: The ingredients list states 63% anchovy, salt and sugar.

A higher stated fish content may result in a more pronounced fish and umami profile. That is not automatically suitable for every dish. For mild dressings or those just starting to explore South-East Asian cuisine, a more balanced sauce may be more practical.

2. Compare Salt, Sugar and Nutritional Values

Fish sauce is used in small quantities, but it often has a high salt content. The nutritional table provides an indication of how carefully it should be measured. According to the product information, X.O Fish Sauce contains 20 g of salt per 100 ml, while Squid Fish Sauce 725 ml contains 25.2 g of salt per 100 g. Tiparos lists 25 g of salt per 100 ml.

The sugar content also affects the flavour. Some Thai and Vietnamese products contain sugar to round off the salty seasoning. When cooking, add the sauce sparingly at first and only add more after tasting. This helps prevent soup, curry, stir-fried dishes or marinades from becoming too salty.

3. Choose the Right Size for the Intended Use

A 300 ml fish sauce is suitable for households that occasionally prepare Pad Thai, Pho, curries, soups or marinades. If you cook Asian dishes frequently or also use the sauce for dips and dressings, you may prefer a larger bottle. Variants holding 680, 700, 720 or 750 ml are better suited to frequent users.

Special recipes involve additional considerations:

  • Fish sauce for Pad Thai: A classic, salty and umami-rich sauce can be balanced with tamarind, sugar and lime.
  • Fish sauce for Som Tam: A ready-made papaya salad dressing or fermented Thai sauce may be closer in flavour to the recipe in question.
  • Fish sauce for seasoning: A clear ingredients list featuring fish, salt and sugar makes a sauce versatile for soups, noodles, curries and stir-fries.
  • Vietnamese fish sauce: It is often used for Nuoc Cham, Pho, rice dishes and marinades. Fish content, salt and sweetness are also key factors when choosing one.

When opening the bottle, you should also check the storage instructions on the label. Many products should be stored in a cool, dry place while unopened and refrigerated after opening. ZAB MIKE and other fermented specialities may have shorter recommended consumption periods.

Our Selection for Different Cooking Profiles

Suitable for: Budget-conscious beginners
Squid Brand Fish Sauce 300ml

Squid Brand Fish Sauce 300ml

Why this product suits this profile: The 300 ml bottle provides a manageable supply for first dishes such as stir-fried vegetables, soups, marinades and dipping sauces.

How this product avoids the pitfall

The ingredients information states 77% anchovy extract. This makes the basis of the sauce clearer than with products containing an ambiguous seasoning blend.

Main benefit & strengths

300 ml contents, 10 g of protein and 55 kcal per 100 ml according to the product information; suitable for soups, dressings and stir-fries.

Suitable for: Buyers with high quality expectations
X.O Fish Sauce 750ml

X.O Fish Sauce 750ml

Why this product suits this profile: The large bottle is designed for households that regularly cook South-East Asian recipes and need a versatile base seasoning.

How this product avoids the pitfall

The information lists 70% anchovy extract, as well as salt, water and sugar. The salt content of 20 g per 100 ml should be taken into account when seasoning.

Main benefit & strengths

750 ml contents and, according to the product description, suitable for soups, stir-fries, marinades and salad dressings.

Suitable for: Special uses & frequent users
ZAB MIKE Fish Sauce for Papaya Salad 350ml

ZAB MIKE Fish Sauce for Papaya Salad 350ml

Why this product suits this profile: This sauce is designed for Som Tam and similar Thai specialities, making it an interesting choice for users focused on a specific recipe.

How this product avoids the pitfall

The name explicitly identifies it as fermented fish sauce for papaya salad. This prevents it from being confused with a neutral all-purpose sauce.

Main benefit & strengths

350 ml contents, originating from Thailand, and 93% fermented fish sauce according to the product information; consume within seven days of opening.

Suitable for: Stock-up shoppers and larger households
Cacom-B Fish Sauce 680ml

Cacom-B Fish Sauce 680ml

Why this product suits this profile: The 680 ml bottle is suitable for frequent seasoning of broths, curries, stir-fries and Nuoc Cham dips.

How this product avoids the pitfall

The product information lists 65% anchovy extract, as well as salt and sugar. The reference to its high salt content supports controlled dosing.

Main benefit & strengths

680 ml contents, originating from Thailand/Vietnam according to the product information, and versatile use as an Asian seasoning sauce.

Looking for more options?

We have compiled a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.

Related Fish Products for Your Cupboard

Not every search for fish products is for a seasoning sauce. Sardines in tomato sauce and mackerel in tomato sauce are ready-to-eat canned products and differ significantly from fermented fish sauce. Mega Sardines in Tomato Sauce with Chilli 155 g combines sardines with tomato, chilli, garlic and onion. According to the product information, Geisha Mackerel in Tomato Sauce 155 g contains mackerel, tomato sauce and salt. Both products can be served with rice, pasta or vegetables. After opening, leftovers should be transferred to a suitable container, refrigerated and consumed within the short period stated on the product page.

Frequently Asked Questions About Buying Fish Sauce

How long does fish sauce keep after opening?

This depends on the individual label. Many products should be refrigerated after opening and used promptly. ZAB MIKE specifies that it should be consumed within seven days, while other sauces state longer periods. The packaging, smell, appearance and manufacturer’s instructions should always be treated as the deciding factors.

Does fish sauce need to be kept in the fridge?

Unopened bottles are often stored in a cool, dry place away from direct light. Once opened, refrigeration is recommended or advisable for many products, particularly fermented specialities and dressings. The specific storage recommendation may vary depending on the recipe.

How much fish sauce should be added to a dish?

As a starting point, a small splash or around half a teaspoon per portion is usually enough, depending on the recipe and salt content. Taste the dish afterwards. For Pad Thai, Pho, curries, marinades and Som Tam, the sauce is often balanced with acidity, sweetness or liquid. Adding it gradually prevents the Asian seasoning sauce from overpowering the other ingredients.