What’s the difference between Japanese mustard and Western style mustard?

Japanese mustard, known as karashi, is made from oriental mustard seeds (typically Brassica juncea) and is a condiment known for its sharp, nose-burning spiciness. Unlike Western mustard, it contains no vinegar or sugar, giving it a clean, dry, and intense heat. It is used in Japanese and Chinese cuisine—commonly paired with oden, natto, tonkatsu, and dumplings.

Sushi chefs also use karashi as a subtle accent to offset the greasiness of fatty fish like bonito and tuna, playing a similar role to wasabi but with a sharper tone.

Western-style mustard, on the other hand, is typically made from white mustard seeds (Sinapis alba) and includes vinegar, salt, sugar, and other flavorings. This gives it a milder, tangy, and often slightly sweet flavor. It is commonly used in sandwiches, salad dressings, and as a condiment for sausages and cold meats.

There are many variations of Western mustard, including:

  • Yellow mustard: mild and tangy, common in hot dogs.
  • Dijon mustard: sharper and more complex, often used in French cuisine.
  • Whole grain mustard: a blend of white and black mustard seeds, often used to flavor vinegars or dressings.

Comparison Points

Main Ingredient:
Japanese mustard uses oriental mustard seeds, while Western mustard typically uses white mustard seeds, sometimes blended with black mustard seeds for whole grain varieties.

Flavor Profile:
Karashi delivers a sharp, dry, pungent (heat that hits the nose, whereas Western-style mustard has a milder to spicy, tangy, and sometimes slightly sweet) flavor, depending on the type.

Acidity:
Japanese mustard contains no vinegar, which gives it a dry and clean heat. Western mustard includes vinegar, giving it a distinctive tangy acidity.

Common Uses:
Karashi is often used with oden, natto, and fatty fish like bonito and tuna, while Western mustard is commonly found in sandwiches, sausages, and salad dressings.

Texture:
Japanese mustard is typically a dry paste mixed from powder before use, while Western mustard is usually creamy, smooth, or grainy and ready to use from a jar or tube.


We hope this information will be helpful.

Revision date: July 21, 2025


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