The three words are not three versions of the same thing. Sushi is a category. Nigiri is one type of sushi. Sashimi is not sushi at all.
What separates them is rice. Sushi means vinegared rice, so anything built on it qualifies and anything without it does not. Nigiri is a hand-pressed finger of rice with fish laid over it. Sashimi is fish sliced and served alone.
The name sashimi carries the clearest trace of why it stands apart. It is usually read as a pierced body, and the common explanation is practical: once a fillet was skinned, the fish’s own fin was pinned to it so the kitchen could still tell what it was. The identity of the fish was the whole point, and it still is.
This guide explains each of the three and, more usefully, how each one is meant to be eaten.
The difference in one table
Rice? | What it is | How it is eaten | |
Sushi | Yes, always | The category. Any dish built on vinegared rice, including nigiri, maki, gunkan and chirashi | Depends on the form |
Nigiri | Yes | A pressed finger of rice with a slice of fish over it, often with wasabi between the two | Fingers or chopsticks, inverted, in one bite |
Sashimi | No | Fish sliced and served without rice, with no cooking and no assembly | Chopsticks, dipped lightly in soy |
The practical consequence is that sashimi is not an alternative to sushi so much as a separate course. It arrives early, while the palate is clean, and it is the dish most easily spoiled by anything eaten before it.
Nigiri: the grasped one
Nigiri comes from a verb meaning to grasp or squeeze. The whole dish is named after the hand movement that makes it, which tells you where the difficulty lies. Two ingredients, no sauce, and a piece of rice that has to hold together between the fingers and then come apart in the mouth.
The form belongs to Edomae sushi, meaning in front of Edo, the old name for Tokyo. The fish came from the bay, and because there was no refrigeration it was almost never served raw and untreated. It was cured in kelp, marinated in soy, salted or lightly boiled before it ever reached the rice.
That history still governs how nigiri is served. A chef seasons the piece before it leaves the counter, so by the time it reaches you the decisions have been made. This is the reason the dipping advice further down is narrower than most people expect.
Nigiri is one of several forms of sushi rather than a synonym for it. If you want the full set — maki, gunkan, temaki, chirashi and the rest — our guide to the different types of sushi covers the taxonomy properly.
Sashimi: the cut one
If nigiri is named for a hand movement, sashimi is named for a blade. There is a second explanation for the word beyond the pinned fin, and it is worth knowing: the obvious verb would have been kiru, to cut, but cutting carried associations in samurai-era Japan that nobody wanted at a table. Sashi was the safer word.
What survives is a dish with nowhere to hide. No rice to balance it, no seasoning applied in advance, no cooking. Sashimi is the quality of the fish and the handling of the knife, and almost nothing else.
The knife work is not decorative. The angle and thickness of a slice change how the flesh sits on the tongue, so a firm white fish is cut thin and something fatter is cut thicker. A chef choosing those cuts is making a decision about texture before you have tasted anything.
How to eat each one
Nigiri. Fingers are correct, and easier than chopsticks for a piece that is built to be lifted. Turn it so the fish, not the rice, meets your tongue. If you are dipping, dip the fish side only: rice behaves like a sponge, and a piece that has soaked up soy will fall apart on the way to your mouth and drown everything the chef balanced. Eat it in one bite, straight away. The rice is served close to body temperature and begins to tighten within a minute or two.
Sashimi. Chopsticks, always. Soy is more freely used here than with nigiri, because nothing has been seasoned in advance and there is no rice to ruin, but a light dip is still better than a soak. Take a slice at a time rather than stacking them.
Maki and rolls. Chopsticks, and whole rather than bitten in half, which is the quickest way to make a roll disintegrate on the plate.
Across the meal. Move light to rich: white fish, then shellfish, then the oilier fish, then anything seared or marbled. Richness coats the palate, so a piece of mackerel eaten before a piece of sea bream will flatten the bream entirely. Pickled ginger is a cleanser to take between pieces, not a topping to put on them.
How to eat sushi with wasabi
The habit of stirring wasabi into a dish of soy until it goes grey is the one worth dropping, and there is a reason for it beyond etiquette.
Wasabi’s heat is volatile. The compound responsible rises into the nose rather than sitting on the tongue, which is why the burn is sharp, brief and nasal rather than lingering like chilli. Dissolve it in liquid and you lose a good part of it before the food arrives. You end up with cloudy, slightly bitter soy and a flattened version of the thing you wanted.
On nigiri, a chef has usually already placed a trace between the fish and the rice. It does not need any more, and adding some is a quiet comment on the kitchen. On sashimi, put a small amount directly onto the slice rather than into the dish.
One further note. Most wasabi served outside Japan is horseradish, mustard and green colouring rather than the rhizome itself, which is slow to grow and expensive. Real wasabi is milder, sweeter and fades within minutes of being grated, which is why it is prepared to order where it is served at all.
All three on one plate
The distinction stops being academic the moment a platter arrives, because a good one puts all three categories in front of you at once.
The opening course of the Classic Tasting Menu at Satori is salmon and tuna nigiri alongside a salmon and avocado maki and salmon & tuna sashimi. The Signature platter adds the third: tuna, hamachi and salmon sashimi served beside the nigiri, a Wagyu and truffle futomaki and a crab California maki.
So the order of attack matters. The sashimi wants eating first, while nothing has coated the palate. The nigiri follows and should not wait on the plate. The rolls, which are sturdier and more seasoned, are the ones to leave until last.
That sequence is not fussiness. It is the difference between tasting hamachi and tasting the soy sauce you put on the piece before it.
Common questions
Is sashimi a type of sushi? No. Sashimi has no rice, and sushi is defined by vinegared rice. They appear on the same menus because they use the same fish and the same knife work.
Is nigiri sushi or sashimi? Nigiri is sushi. It is a slice of fish over pressed vinegared rice, which puts it firmly in the sushi category.
Should sushi be eaten with hands or chopsticks? Either works for nigiri, and fingers are often easier. Use chopsticks for sashimi and for rolls.
Where should the wasabi go? On the fish, not in the soy dish. On nigiri it has usually been placed between the fish and the rice already.
Which should be eaten first? Sashimi, while the palate is clean, then nigiri, then rolls. Within each, lighter fish before oilier fish.
Knowing which is which changes how the first course tastes. View the sushi and sashimi menu at Satori.
