The main types of caviar differ by the sturgeon species or hybrid that produces the eggs. Seven important names are Beluga, Sterlet, Kaluga Hybrid, American Ossetra, Ossetra, Siberian sturgeon and Sevruga. They range from large, delicate beads with a creamy flavor to smaller, firmer eggs with a stronger marine finish.
These seven caviar varieties are useful reference points, but they are not the only kinds of caviar. Farms around the world also produce white sturgeon, Adriatic sturgeon and other pure-species or hybrid caviars. A label may use a traditional name, a species name, a farm’s trade name or a combination of these, so the scientific species information is often the clearest way to compare products.
What Makes One Type of Caviar Different From Another?
In the strict culinary sense, caviar is salted roe from fish in the sturgeon family, Acipenseridae. Salmon, trout, tobiko and lumpfish roe may be delicious, but they are not types of sturgeon caviar. The Codex standard defines sturgeon caviar as eggs from the Acipenseridae family treated with food-grade salt.
Species matters, but it is not the only factor affecting a tin. The same type of caviar can vary according to the fish’s age, genetics and diet; the water and farm environment; egg maturity; salting and processing; pasteurization; and storage. Color alone does not prove that one tin is better than another. Evaluate the complete label, bead condition, aroma, texture and flavor.
Quick Comparison of the Seven Caviar Types
| Type | Source | Typical bead and color | General flavor and texture |
|---|---|---|---|
| Beluga | Huso huso | Very large; pearl gray to dark gray | Delicate, creamy and silky |
| Sterlet | Acipenser ruthenus | Small; gray to dark gray | Savory, gently nutty and tender |
| Kaluga Hybrid | Usually Huso dauricus × Acipenser schrenckii | Large; gray, amber or olive-brown | Creamy, clean and firm |
| American Ossetra | A market name that requires label verification | Usually medium to large; brown, gray or gold | Often nutty and firm, but varies by species |
| Ossetra | Commonly Acipenser gueldenstaedtii; regional rules may also include A. persicus | Medium; brown, gray, amber or gold | Nutty, mineral and moderately firm |
| Siberian | Acipenser baerii | Small to medium; charcoal, brown or gray | Clean, savory, earthy and firm |
| Sevruga | Acipenser stellatus | Small; light to dark gray | Briny, concentrated and lively |
Bead size, color and flavor vary by producer and lot. Use this table as a tasting guide, not a universal grading scale.
The Seven Main Caviar Varieties Explained
1. Beluga Caviar
Beluga caviar comes from the Beluga sturgeon, Huso huso. It is famous for exceptionally large eggs, a thin membrane and a soft, silky texture. Its flavor is generally described as clean, creamy and delicate rather than aggressively salty.
Beluga’s reputation, slow maturation and conservation history have made it one of the rarest and most regulated caviar names. Availability depends on the product’s origin and the laws of the destination country. In the United States, buyers should not assume that every product marketed with “Beluga” is Huso huso caviar; “Beluga-style” products and hybrids may be different fish. Check the species on the label and confirm that the seller follows applicable trade rules.
Best for: tasting plain in a small portion, where its delicate texture is easy to notice.
2. Sterlet Caviar
Sterlet caviar comes from Acipenser ruthenus, a relatively small Eurasian sturgeon. Its eggs are generally smaller than Beluga or Kaluga Hybrid beads. The flavor can be savory, lightly nutty and persistent, with a tender texture.
Sterlet is less common in many retail markets, and it should not be treated as merely a substitute for Sevruga. Although both can have smaller beads and an assertive character, they come from different sturgeon species. If a seller offers Sterlet, look for the species name or the CITES species code RUT on the label.
Best for: experienced tasters who want to compare a less common species with Sevruga or Siberian caviar.
3. Kaluga Hybrid Caviar
Kaluga Hybrid is commonly produced by crossing Kaluga sturgeon, Huso dauricus, with Amur sturgeon, Acipenser schrenckii. It often has large, resilient beads and a creamy, clean flavor with a mild nutty or mineral finish.
Because of its bead size and luxurious texture, Kaluga Hybrid is frequently compared with Beluga. It is not Beluga caviar, however, and the label should identify it as a hybrid. The firmer pop can make it easier to serve on blini, toast points, potatoes or canapés than a very delicate caviar.
Best for: first-time buyers or entertainers seeking large beads, a balanced flavor and versatile texture.
4. American Ossetra Caviar
“American Ossetra” can be an ambiguous retail name. It may describe Ossetra-type caviar raised or packed in the United States, but it does not by itself identify the fish. Some American-farmed products come from Russian sturgeon, Acipenser gueldenstaedtii, while others may use a different species or hybrid and a brand-specific name.
Do not confuse American Ossetra with American white sturgeon caviar. White sturgeon, Acipenser transmontanus, is a distinct North American species that typically produces medium to large, dark eggs with a clean, mild-to-nutty profile. When comparing an “American Ossetra” tin, read the scientific species, country of origin and hybrid notation instead of relying on the front-label name alone.
Best for: buyers who verify the species and want a domestically farmed, Ossetra-style profile.
5. Ossetra Caviar
Ossetra—also spelled Osetra or Oscietra—is traditionally associated with Russian sturgeon, Acipenser gueldenstaedtii. Under the Codex standard, the usual name may also apply to Persian sturgeon, Acipenser persicus, depending on local law and custom.
Ossetra eggs are generally medium-sized and may range from deep brown and gray to amber or gold. The classic flavor description is nutty and mineral with balanced salinity and a moderately firm pop. Golden color may be prized, but it is not the only sign of quality.
Best for: a comparative tasting or an elegant first caviar when the buyer wants a recognizable nutty, structured profile.
6. Siberian Sturgeon Caviar
Siberian caviar comes from Acipenser baerii and is also called Baerii caviar. It is widely farmed and is often more accessible than Beluga or premium Ossetra. Its eggs are usually small to medium, with colors ranging from charcoal and slate gray to brown.
Flavor varies by farm and cure, but Siberian caviar is often clean, savory and earthy, with a distinct marine or mineral finish. Its firm beads make it versatile enough to taste plain or serve with restrained accompaniments.
Best for: newcomers who want authentic sturgeon caviar at a comparatively approachable price, as well as experienced tasters who enjoy a bolder finish.
7. Sevruga Caviar
Sevruga caviar comes from stellate sturgeon, Acipenser stellatus. It normally has smaller eggs than Beluga and many Ossetra products, but its flavor is often more concentrated. Expect a lively briny character, a noticeable pop and a savory finish.
Sevruga is not simply lower-grade caviar because its beads are small. Bead size is partly a species trait, and quality must be judged within the type. When Sevruga is unavailable, Siberian or Sterlet may offer a stronger flavor and smaller bead, but neither is an exact replacement.
Best for: diners who prefer intensity and salinity over very large, delicate beads.
Beluga vs. Ossetra vs. Kaluga Hybrid vs. Sevruga
Beluga is typically the most delicate and has the largest, softest beads. Ossetra is more structured, nutty and mineral, with medium-sized eggs. Kaluga Hybrid often combines large beads with a firmer texture and a clean, creamy profile. Sevruga usually has the smallest beads of the four and the most concentrated briny flavor.
There is no universally “best” caviar type. Choose Beluga for delicacy, Ossetra for nutty complexity, Kaluga Hybrid for large and resilient beads, or Sevruga for a more pronounced marine taste. A side-by-side sampler reveals these differences more clearly than price alone.
How Many Types of Caviar Are There?
There is no single consumer-facing number. Many sturgeon species can produce caviar, and aquaculture has introduced numerous hybrids. In addition, retailers use regional spellings, traditional names and proprietary grades. This article focuses on seven notable caviar names rather than claiming that only seven exist.
Other caviar fish species encountered in the market include white sturgeon (Acipenser transmontanus), Adriatic sturgeon (Acipenser naccarii), Amur sturgeon (Acipenser schrenckii) and various documented hybrids. Paddlefish roe is closely related and often marketed as a caviar alternative, but the Codex definition of sturgeon caviar applies to Acipenseridae.
How to Read Caviar Names and Labels
A polished brand name is not enough to identify a caviar. For a more reliable comparison:
- Find the common and scientific species name.
- Check whether the product is a hybrid and, when available, identify both parent species.
- Confirm the country of origin and the producer or repacker.
- Look for the CITES label on containers covered by international sturgeon-caviar trade requirements.
- Check the storage instructions, use-by information and whether the product is pasteurized.
- Compare net weight and price per gram rather than tin price alone.
The CITES universal labeling system uses standardized species and source codes to help identify legal caviar in trade. A label is more useful than assumptions based on bead color or a retailer’s luxury terminology.
How to Choose the Right Caviar Type
For a first tasting, choose a balanced farmed Ossetra, Kaluga Hybrid or Siberian caviar from a transparent seller. Buy two smaller tins instead of one large tin if your goal is to understand differences. Taste each plain first, then add neutral accompaniments such as blini, toast points, small potatoes or crème fraîche.
If texture matters most, consider firm Kaluga Hybrid or Ossetra. If you prefer a delicate, creamy experience, look toward a legally available product accurately labeled as Beluga, or compare a large-bead hybrid. For stronger salinity and a more concentrated marine character, try Sevruga or Siberian.
Quality is not determined by species alone. The eggs should smell clean and fresh, remain distinct rather than watery or crushed, and taste balanced rather than harsh, sour or stale. Follow the producer’s refrigeration and consumption instructions.
Frequently Asked Questions
What are the main types of caviar?
Seven important examples are Beluga, Sterlet, Kaluga Hybrid, American Ossetra, Ossetra, Siberian sturgeon and Sevruga. Other types include white sturgeon, Adriatic sturgeon, Amur sturgeon and additional hybrids.
What fish does caviar come from?
Traditional caviar comes from sturgeon in the Acipenseridae family. Each named caviar may come from a particular species, such as Huso huso for Beluga, Acipenser gueldenstaedtii for Ossetra or Acipenser baerii for Siberian caviar.
What is the difference between Beluga and Ossetra caviar?
Beluga generally has larger, softer beads and a delicate creamy flavor. Ossetra usually has medium, firmer eggs with a nuttier, more mineral profile. Species, texture, availability and price distinguish them.
Is Kaluga the same as Beluga caviar?
No. Kaluga Hybrid commonly comes from Huso dauricus crossed with Acipenser schrenckii, while true Beluga caviar comes from Huso huso. Kaluga Hybrid may resemble Beluga in bead size and creaminess but must be identified as a different product.
What is the difference between white sturgeon caviar and Ossetra?
White sturgeon caviar comes from Acipenser transmontanus, a North American species. Ossetra is traditionally associated with Acipenser gueldenstaedtii and, under some naming rules, Acipenser persicus. Both can be nutty and firm, but they have different species identities and characteristic profiles.
Are larger caviar eggs always better?
No. Large beads may be prized in some varieties, but small eggs are normal for types such as Sevruga and Sterlet. Quality depends on freshness, bead integrity, flavor, cure and species-appropriate character, not size alone.
Which type of caviar is best for beginners?
Kaluga Hybrid, farmed Ossetra and Siberian caviar are common starting points. Kaluga Hybrid is creamy and firm, Ossetra is nutty and balanced, and Siberian is often accessible with a more savory finish.
Sources
CITES: Universal Caviar Labelling Requirements
Codex Alimentarius: Standard for Sturgeon Caviar CXS 291-2010
