Sake-Arai (Sake Wash): How Sake Removes Fishy Odor

What this article answers

Remove fishy odor without changing color or taste

Coat with sake, leave 3–10 minutes, then wipe it off

How much sake to use

15 ml (1 tbsp) per 100 g of fish: just enough to coat

Which sake to use

Plain sake with no added salt. Salted cooking sake makes the dish saltier

Sashimi, or fish that smells strongly

Sashimi: a soy sauce wash suits it better. Strong odors: a vinegar-water rinse or a boiling-water scald

Sake-arai (酒洗い, “sake wash”) is a Japanese prep technique: you sprinkle an ingredient with sake to remove its odor.

Three mechanisms work at once: evaporating alcohol, neutralizing organic acids, and masking aroma compounds. So it strips odor while adding the mild flavor of sake.

Other prep steps do more than remove odor. Shoyu-arai (a soy sauce wash) draws out water and adds umami. Salting draws out water and denatures protein.

Sake-arai does one job: removing odor. It draws out almost no water, but it leaves the color and taste of the food unchanged, and that is its strength.

How sake removes fishy odor

Three components of sake act on odor compounds, each by a different route.

1. Evaporating alcohol carries odor away

Sake is about 15% alcohol; cooking sake is 13–14%. Ethanol boils at 78.4°C (173°F).

As it evaporates, it carries volatile odor compounds such as trimethylamine along with it. This is the azeotropic effect.

It works best during cooking. But alcohol also evaporates slowly at room temperature, so even an uncooked sake wash removes some odor.

2. Organic acids neutralize trimethylamine

Sake contains about 0.3–0.5% organic acids, including succinic, lactic, and malic acid. Trimethylamine (TMA), the alkaline compound behind fishy smell, reacts with them and becomes a salt that barely evaporates.

A vinegar-water rinse works on the same principle. But sake’s organic acids are at 1/10 or less of the concentration of acetic acid in vinegar (4–5%). So the effect is gentle, and no sourness stays on the food.

3. Aroma compounds mask the rest

Brewing gives sake its aroma compounds, esters such as isoamyl acetate and ethyl caproate. They cover up the trace of odor that remains.

Evaporation and neutralization remove most of the odor, and masking finishes the job. These three layers together are what make sake-arai work.

How to do a sake wash

The basic steps

1. Coat: pour sake over the ingredient so it reaches every surface.
2. Rest: work it in lightly by hand and leave it for the set time.
3. Wipe or rinse: wipe with paper towels. If the odor is strong, rinse quickly under running water first, then wipe.

How much sake to use

Amount of food	Sake	Notes
Fish, up to 100 g	15 ml (1 tbsp)	Just enough to coat it
Fish, 200–300 g	30 ml (2 tbsp)	Same as above
Clams or crustaceans, 200 g	15–30 ml (1–2 tbsp)	Toss in a bowl

How long to leave it

Ingredient	Time	Notes
Fish fillets (yellowtail, salmon, etc.)	5–10 min	Ideal prep for teriyaki or simmered fish
White fish fillets	3–5 min	Too long and the flesh falls apart more easily
Clams (Manila clams, hard clams, etc.)	3–5 min	Coat them with sake in the shell
Crustaceans (shrimp, crab meat)	3–5 min	Keep it short so the alcohol doesn’t soak too far into the meat
Sashimi	1–3 min	Very brief; mostly for aroma

Sake-arai for fish, shellfish, and sashimi

Fillets for teriyaki and simmered fish

This is where sake-arai pays off most. Use it before dishes seasoned with soy sauce or miso: yellowtail teriyaki, saikyo-yaki (salmon marinated in white miso and grilled), simmered fish.

Sprinkle about 15 ml (1 tbsp) of sake per 100 g of fish, coat it all over, and leave it for about 5 minutes. Wipe off the liquid and odor that rise to the surface with paper towels, then season.

Clams and crustaceans

Clams such as Manila clams and hard clams, and shrimp, have a distinct briny smell of the sea. It, too, comes mainly from volatile compounds such as TMA and dimethyl sulfide.

Put clams in a bowl, sprinkle them with sake, toss lightly, and leave them for 3–5 minutes. If you’re making sakamushi (clams steamed in sake), go straight on to cooking, and prep and cooking become one step.

Coat shrimp in sake after peeling, and they smell far less once cooked. The usual practice is to do this along with deveining.

Sashimi

On sashimi, sake-arai adds aroma more than it removes odor. Work a very small amount of sake in with your fingertips, and wipe it off after 1–3 minutes.

Shoyu-arai suits sashimi better, though, because it draws out water and adds umami at once. In practice, save sake-arai for white-fish sashimi that you don’t want colored or flavored by soy sauce.

Sake, soy sauce, salt, or vinegar?

Sake-arai, shoyu-arai, salting, and a vinegar-water rinse all control odor during prep. Their mechanisms and strengths differ.

	Sake-arai	Shoyu-arai	Salting	Vinegar-water rinse
Main effect	Removes odor + adds flavor	Draws out water + adds umami	Draws out water + denatures protein	Neutralizes odor compounds
Mechanism	Azeotropic evaporation + neutralization by organic acids + masking	Osmotic pressure (16% salt)	Osmotic pressure (salt itself)	Acid–base reaction
Water removal	Almost none	Moderate	Strong	Weak
Odor removal	Moderate to strong (three layers)	Moderate (comes with water loss)	Moderate (comes with water loss)	Strong (chemical neutralization)
Umami added	Slight	Yes (amino acids)	None	None
Color change	None	Yes (soy sauce color transfers)	None	None
Best ingredients	All seafood, especially clams and crustaceans	Sashimi, blanched vegetables, tofu	All meat, fish fillets	Strong-smelling fish, offal
Best dishes	Simmered, steamed, teriyaki	Dressed dishes, ohitashi (blanched greens steeped in seasoned dashi), marinated sashimi	Grilled dishes, all simmered dishes	Prep in general

How to choose:

• To remove odor gently without changing color or taste → sake-arai
• For uncooked dishes where you also want umami → shoyu-arai
• To draw water out of meat or fish you will cook → salting
• For ingredients that smell especially strong → a vinegar-water rinse

Which sake to use, and its limits

Plain sake, not salted cooking sake

Type	Alcohol	Characteristics	For sake-arai
Seishu (regular drinking sake)	About 15%	No salt; few off-flavors	Best
Cooking sake with added salt	About 13–14%	Around 2% salt; has an osmotic effect	Usable, but watch the salt
Hon mirin (true mirin, a sweet rice seasoning)	About 14%	40% or more sugar; adds sweetness	Better for seasoning than for a sake wash

Salted cooking sake adds salt, so hold back on salt when you season later. To get the real advantage of sake-arai, unchanged color and taste, use plain sake with no salt.

Read the label before you buy. Bottles sold as cooking sake may contain added salt or corn syrup. Bottles labeled aji-mirin or sweet cooking seasoning are mirin-style products, and some have less than 1% alcohol. That is too little alcohol to carry odor away.

Alcohol that stays behind

Leaving it for 5–10 minutes at room temperature does not evaporate all of the alcohol. That’s no problem if you go on to cook the food. For raw dishes such as sashimi, use only a very small amount and wipe it off thoroughly.

When sake alone isn’t enough

In ingredients that have lost a lot of freshness, odor compounds have soaked deep inside. A sake wash on the surface can’t reach them.

Neutralize the odor chemically with a vinegar-water rinse instead, or combine sake-arai with shimofuri (pouring boiling water over the surface to remove slime and odor).

A little sake, 3–10 minutes, wipe off

Sake-arai removes odor through three mechanisms: the azeotropic effect of alcohol, neutralization by organic acids, and masking by aroma compounds.

It draws out almost no water. But it removes odor without changing the color or taste of the food, something shoyu-arai and salting can’t do.

Remember three points:

• Use only enough sake to coat the food.
• Leave it for 3–10 minutes, depending on the ingredient.
• Wipe it off (or rinse it off) so the odor compounds are really gone.

It is ideal prep for sauce-flavored dishes such as teriyaki and simmered fish. Use salting for salt-grilled fish and shoyu-arai for sashimi. Matching the prep to the dish makes it more precise.