Key Takeaways
- Sushi rice is a seasoning method (rice cooked with vinegar, sugar, and salt), not a rice variety
- Calrose is a specific medium-grain rice cultivar developed in California in 1948
- Calrose isn't Japanese, but its japonica genetics make it behave like short-grain Japanese rice
- Many bags labeled sushi rice on grocery shelves are actually calrose rice underneath
- Rinse calrose rice before cooking so it doesn't turn overly gummy once seasoned
Sushi Rice vs Calrose Rice: The Quick Answer
I get asked this constantly in my own kitchen: is calrose rice the same thing as sushi rice? It’s not, but the two are more tangled up than most people realize.
The short answer is that sushi rice is a preparation method, while calrose rice is an actual variety you can use to make it.
Once that distinction clicks, the whole rice aisle stops feeling so confusing.
What Is Sushi Rice, Exactly?
Sushi rice, or shari as it’s called in Japanese kitchens, isn’t a botanical rice variety at all.
It’s cooked rice seasoned with a warm mixture of rice vinegar, sugar, and salt, usually in roughly a 2:1:1 ratio.
That seasoning is what gives sushi rice its faint sweetness and tang, not anything special about the raw grain itself. You can read more about how it fits into traditional sushi preparation for context.
In my experience, short or medium-grain japonica-type white rice works best because it’s starchier and clumps together without turning mushy.
Long-grain rices like basmati or jasmine just don’t hold together the same way, which is why you rarely see them in rolls.
If you’re curious how sushi rice stacks up against a completely different grain shape, I’ve broken down arborio rice vs sushi rice and why arborio’s creaminess never quite works for sushi.
What Is Calrose Rice?
Calrose is a real, specific rice cultivar — not a cooking style.
It was developed at the Rice Experiment Station in Biggs, California, and officially released in 1948.
The name is a mashup of California and rose, a nod to the plump, rounded shape of the grain.
Calrose is classified as a medium-grain japonica-type rice, and it now makes up the large majority of rice grown in California, according to the California Rice Commission.
Cooked plain, it’s soft, a little sticky, and fairly neutral in flavor — it takes on whatever you season it with.
I reach for it constantly for onigiri, rice bowls, and stir-fries, since it holds its shape better than fluffier long-grain rice does.
If you make rice balls at home, it’s worth knowing onigiri vs musubi, since calrose is the rice most home cooks reach for in both.
Is Calrose Rice Japanese?
This is where a lot of the grocery-store confusion comes from — calrose sounds like it could be Japanese, but it isn’t.
Calrose is an American cultivar, bred and grown almost entirely in California, not Japan.
That said, it’s genetically a japonica-type rice, the same broad family as the short-grain rice grown in Japan.
California’s rice industry actually traces part of its early seed stock back to Asian varieties introduced in the early 1900s, which is part of why calrose behaves so much like Japanese rice once it’s in the pot.
So calrose is best described as an American rice with Japanese-style genetics grown for a similar texture, not an imported Japanese product.
It’s also worth knowing that calrose isn’t a single fixed strain anymore — breeders have released several updated calrose varieties over the decades (like M-206 and M-209), all still marketed under the calrose name because they share that same rounded, sticky-when-cooked profile.
Is Calrose Rice the Same as Sushi Rice?
Here’s the part that trips people up most in the rice aisle.
No — calrose rice on its own is not sushi rice, but it’s very often the rice sitting inside the bag labeled sushi rice.
Plenty of brands sell calrose rice repackaged and marketed as sushi rice simply because it’s the right texture for the job.
Unseasoned, straight-from-the-bag calrose is just plain steamed rice — mild, soft, sticky, and completely unseasoned.
It only becomes sushi rice once you cook it and fold in that warm vinegar, sugar, and salt mixture while it’s still hot.
A quick way to check what you’re actually buying: flip the bag over. If the ingredient list says nothing but rice, and the variety name printed on the front is calrose, medium-grain, or short-grain, you’re looking at plain rice that’s simply well-suited to sushi — not pre-seasoned rice.
If your store is out of anything labeled sushi rice, calrose is one of the closest substitutes, right alongside options like brown rice vs sushi rice if you want more fiber instead.
Similarities Between Sushi Rice and Calrose Rice
Despite one being a method and the other a variety, they overlap in some important ways.
Starch content. Both are high-starch white rices, which is exactly what makes them cling together instead of falling apart.
Texture when cooked. Both turn soft and slightly sticky rather than light and fluffy, which is basically non-negotiable for rolling sushi.
Mild flavor. Plain calrose is neutral, and sushi rice only tastes sweet because of added seasoning — neither fights with fish, vegetables, or sauce.
Shared use case. Calrose is genuinely one of the go-to rices used to make sushi rice in American kitchens and restaurants.
Key Differences at a Glance
Once you line them up side by side, the differences are pretty clean.
The biggest one is simply category: rice type versus rice preparation.
Grain length is another giveaway — traditional Japanese sushi rice cultivars are short-grain, while calrose is officially medium-grain, though the two look and behave almost identically in a bowl.
| Feature | Sushi Rice | Calrose Rice |
|---|---|---|
| Category | Preparation method | Specific rice variety |
| Origin | Traditional Japanese technique | Developed in California, 1948 |
| Grain type used | Usually short-grain japonica | Medium-grain japonica |
| Flavor | Seasoned with vinegar, sugar, salt | Neutral and plain until seasoned |
| Texture | Sticky, glossy, tangy | Soft, sticky, mild |
| Sold as | Seasoned rice or pre-labeled bags | Plain bagged rice, often used to make sushi rice |
Common Mistakes When Turning Calrose Into Sushi Rice
I’ve made most of these mistakes myself, usually while rushing dinner.
Skipping the rinse. Unrinsed calrose has extra surface starch, which turns your finished rice into more of a paste than distinct, glossy grains.
Using too much water. If you cook calrose the same way you’d cook a fluffy long-grain rice, it comes out too wet to absorb the vinegar mixture properly. Cut back slightly on liquid compared to what the bag recommends.
Adding cold vinegar mixture to cold rice. The seasoning needs to go in while the rice is still hot, right out of the pot, so it absorbs evenly instead of just sitting on the surface.
Stirring instead of folding. Stirring mashes the grains and releases even more starch. A cutting, folding motion with a wooden paddle keeps the grains intact.
Skipping the cooling step. Rice that’s seasoned but never fanned or spread out stays warm and mushy instead of developing that glossy, separate-grain texture sushi rice is known for.
How to Turn Calrose Into Sushi Rice at Home
If you’ve got a bag of calrose sitting in your pantry, you’re closer to homemade sushi rice than you might think.
Rinse the rice two or three times until the water runs mostly clear — this washes off surface starch that would otherwise make it gummy.
Cook it with slightly less water than you’d use for a plain rice bowl, since you want it a touch firmer before seasoning.
While it’s still hot, fold in a warmed mixture of rice vinegar, sugar, and salt in roughly a 2:1:1 ratio, using a wooden spoon or rice paddle.
I always spread the rice out on a flat tray or wide bowl afterward and fan it while folding, which cools it fast and gives it that glossy, separate-grain look.
Cover it with a damp towel if you’re not using it right away — sushi rice dries out and turns hard surprisingly fast.
Once it’s seasoned, serve it under sashimi, in rolls, or as the base for a rice bowl with a drizzle of something like ponzu vs shoyu for extra brightness.
Storing and Reheating Leftover Sushi Rice
Seasoned sushi rice doesn’t keep the way plain rice does, mostly because of the vinegar and sugar.
Leave it covered at room temperature for no more than a couple of hours if you’re serving it the same day — that’s actually the traditional approach, since Japanese sushi chefs rarely refrigerate it.
For longer storage, keep it in an airtight container in the fridge for up to a day, though the texture firms up noticeably as it cools.
To bring it back, microwave it in short bursts with a damp paper towel over the top, or steam it briefly, then fluff gently with a fork or paddle.
I don’t recommend freezing already-seasoned sushi rice — the vinegar mixture throws off the texture badly once thawed, turning grains mealy instead of glossy.
If you’re planning ahead, it’s better to freeze plain cooked calrose rice and season it fresh after reheating.
Which Should You Buy?
Honestly, this isn’t really an either-or decision — it’s about knowing what each label actually means.
Grab plain calrose rice when you want an everyday, do-anything rice for stir-fries, rice bowls, or a quick side alongside karaage vs katsu-style fried chicken.
Buy something labeled sushi rice when you don’t want to bother seasoning it yourself — just check the ingredient list, since it’s very often calrose underneath anyway.
If you’re rolling sushi at home regularly, I’d just buy plain calrose and season it myself; for a broader rundown of rice types grown in the US, USA Rice has a solid overview.
It’s cheaper that way, and you control exactly how sweet or tangy the final rice turns out.
Frequently Asked Questions
Is calrose rice sushi rice?
Not exactly. Calrose is a plain medium-grain rice variety, and it only becomes sushi rice once it's cooked and seasoned with rice vinegar, sugar, and salt. That said, many bags labeled sushi rice on grocery shelves are calrose rice repackaged for that purpose.
Is calrose rice Japanese?
No, calrose is an American rice cultivar developed and grown in California, not Japan. It is a japonica-type rice, the same broad family as Japanese short-grain rice, which is why it cooks up with a similar sticky texture.
Can you substitute calrose rice for sushi rice?
Yes. Because calrose is a sticky, starchy medium-grain rice, it's one of the best substitutes for traditional short-grain Japanese sushi rice, especially once seasoned with the classic vinegar mixture.
Do you need to rinse calrose rice before cooking?
Yes, rinsing calrose rice two to three times removes surface starch and helps keep the cooked rice from turning overly gummy once it's seasoned.
What's the difference between calrose and koshihikari rice?
Koshihikari is a premium short-grain Japanese cultivar prized for its sweetness and stickiness, while calrose is a medium-grain American variety bred to be a more affordable, similarly textured alternative. Koshihikari tends to be pricier and slightly stickier, but calrose is close enough that it's commonly used in its place.
Can you use calrose rice for fried rice?
Yes, though it's not the classic choice. Calrose's stickiness makes fried rice clump more than it would with a drier long-grain rice like jasmine. If you want fried rice with more separated grains, cook the calrose a day ahead and refrigerate it uncovered before frying, which dries it out just enough.
Why does my sushi rice turn out mushy even when I use calrose?
This is almost always a water or seasoning timing issue. Using too much cooking water, skipping the rinse, or adding the vinegar mixture after the rice has cooled are the most common culprits. Rinse thoroughly, cut back on water slightly, and season while the rice is still hot.