What is Caviar Exactly?

Caviar is salt-cured fish roe from sturgeon, a family of fish known scientifically as Acipenseridae. The individual eggs are separated from the ovary, cleaned, graded and lightly salted. Authentic caviar may come from species such as Beluga, Ossetra, Siberian, White, Hackleback or Kaluga sturgeon and recognized sturgeon hybrids.

Salmon, trout, paddlefish, lumpfish and flying fish also produce edible roe, but their eggs are not sturgeon caviar under the international Codex standard. They are more accurately described by the fish name, such as salmon roe or trout roe, even when sellers informally use phrases such as “salmon caviar.”

Caviar Meaning and Exact Definition

The simplest caviar definition is salt-cured sturgeon eggs. “Roe” means fish eggs in general; “caviar” is the narrower culinary term for prepared roe from fish in the sturgeon family.

The Codex Alimentarius Standard for Sturgeon Caviar (CXS 291-2010) defines the food as a product made from fish eggs of the Acipenseridae family. The standard covers eggs treated with food-grade salt and allows specified food additives in certain products. That is why “caviar contains only roe and salt” can describe a traditional malossol product, but it is not a universal definition of every legal caviar product.

Quick Facts

What Fish Does Caviar Come From?

True caviar comes from sturgeon. Sturgeons are ancient-looking, mostly large fish with rows of bony plates called scutes. Depending on the species and population, they may live in freshwater or move between saltwater and freshwater.

There is no single “caviar fish.” Several sturgeon species and hybrids produce caviar, and each can yield eggs with a different size, color, firmness and flavor profile.

Names on a tin should be checked against the species information on its label. Commercial names can vary by market, and hybrid caviar should not be assumed to come from a pure species.

What Is the Difference Between Roe and Caviar?

Roe is the general term for fish eggs, while caviar is prepared roe from sturgeon. All caviar is roe, but not all roe is caviar.

In everyday retail language, “caviar” is sometimes used loosely for other salted fish eggs. A modifier such as “salmon caviar” tells you that the product is salmon roe, not sturgeon caviar. Read our guide to roe for a broader explanation of fish eggs and our guide to ikura for the Japanese preparation of salmon roe.

How Is Caviar Made?

Caviar production is a controlled process designed to protect the eggs’ shape, texture and freshness. Exact methods differ among farms and processors, but the basic sequence is:

1. Harvesting: Mature roe is collected from a female sturgeon. The specific harvesting method depends on the producer and applicable regulations.
2. Separation: The egg mass is passed carefully through a screen to separate individual eggs from ovarian tissue.
3. Rinsing: The eggs are cleaned with cold water to remove remaining tissue and impurities.
4. Grading: Roe is assessed for species, egg size, color, firmness, uniformity and sensory quality.
5. Salting: Food-grade salt is mixed with the eggs. Lightly salted caviar is often described as malossol, a Russian-derived term meaning “little salt.”
6. Packing and refrigeration: The finished caviar is packed and kept cold through distribution.

Salt does more than add flavor: it also affects preservation and texture. Caviar is still a perishable refrigerated seafood. Follow the producer’s temperature and use-by instructions rather than assuming every tin has the same shelf life. FDA seafood guidance emphasizes time and temperature controls for refrigerated salted fish products, including caviar.

What Are the Main Types of Caviar?

Caviar types are primarily distinguished by the sturgeon species or hybrid, not simply by egg color. Beluga, Ossetra and Sevruga are historic Caspian names, while Siberian, White sturgeon, Hackleback and Kaluga or Kaluga-hybrid caviars are also found in today’s market.

Two tins from the same general type can still taste and feel different. Farm environment, feed, the fish’s maturity, salting, grading, packing and storage all influence the finished product. Species is an important starting point, but it is not a complete quality grade.

Explore Caviar Guide’s sturgeon caviar varieties for species-specific profiles. Buyers who are new to the category can also use our beginner caviar guide to compare approachable styles.

What Does Caviar Look and Taste Like?

Good caviar should taste clean and balanced rather than aggressively fishy. Depending on the species and product, it may be lightly briny, buttery, creamy, nutty, mineral or oceanic. The eggs may feel delicate or firm and should release flavor as they roll and break on the tongue.

Caviar is not always black. Natural colors range from pale silver and gray to olive, amber, brown, charcoal and near-black. Color alone does not prove quality or authenticity. Uniform eggs, an appealing sheen, a clean aroma and the condition of the tin are more useful clues when considered with the label and cold chain.

For a deeper sensory breakdown, see what caviar tastes like and our guide to tasting caviar at home.

Why Is Caviar So Expensive?

Caviar can be expensive because sturgeon require years of specialized care before producing harvestable roe. The timeline varies greatly by species and farming conditions, so there is no single maturity age for all caviar-producing fish.

Price also reflects:

• the cost of raising large fish for an extended period;
• aquaculture systems, water quality, feed and veterinary oversight;
• skilled harvesting, grading, salting and packing;
• the yield and consistency of marketable eggs;
• cold-chain shipping and short refrigerated shelf life;
• species rarity, trade controls, grade, egg size and demand.

Expensive does not automatically mean better for every palate. A well-handled Siberian or White sturgeon caviar may provide a better first tasting than a higher-priced style chosen only for prestige. Compare the species, producer, freshness, egg condition and serving size—not price alone.

Is Caviar Wild or Farmed?

Historically, famous caviars came from wild sturgeon in the Caspian and Black Sea regions. Today, legitimate commercial supply is predominantly farm-raised as aquaculture has become central to sturgeon conservation and legal caviar production.

International trade in sturgeon and paddlefish products is regulated under CITES. Caviar containers in international trade use standardized labels that can identify details such as species, source and country of origin. Do not assume that “Caspian style,” a country name or dark egg color proves that a product is wild, rare or superior.

Learn more in our guide to wild versus farmed caviar. 

How Can You Tell Whether Caviar Is Authentic?

Start with the label. Authentic caviar should identify the product as sturgeon roe and should provide enough information to determine the species or hybrid. For imported or internationally traded caviar, a CITES label is an important traceability marker.

Before buying, check:

• Species: Look for the common name and, when provided, the scientific species or hybrid code.
• Ingredients: Traditional products are usually roe and salt, but permitted preservatives or other additives may appear. Read the actual ingredient list.
• Producer and origin: Choose a seller that discloses where the caviar was farmed or packed.
• Cold shipping: Caviar should arrive properly chilled and in intact packaging.
• Date and storage directions: Follow the marked use-by date and refrigeration instructions.
• Product wording: Salmon, trout, lumpfish, paddlefish, tobiko and masago are roe products, not sturgeon caviar.

Be cautious with vague listings that rely on luxury language but omit the fish source. “Black caviar” is not enough information because some non-sturgeon roes are naturally dark or artificially colored.

How Is Caviar Served and Eaten?

Caviar is served cold, usually in small portions. For a first taste, eat a small spoonful by itself so you can notice the egg size, firmness, salinity and finish. A nonreactive spoon made from mother-of-pearl, horn, glass or food-safe plastic is traditionally preferred because some metals can affect the tasting experience.

Neutral accompaniments such as blini, toast points, boiled potato, crème fraîche or unsalted crackers can support the caviar without overwhelming it. Champagne and chilled vodka are classic pairings, but they are not required.

Keep the unopened tin refrigerated according to its label. Once opened, minimize time at room temperature, avoid cross-contamination and follow the producer’s instructions for prompt consumption. For technique and serving sizes, see how to open a caviar tin.

Frequently Asked Questions About Caviar

Is caviar fish eggs?

Yes. Caviar consists of unfertilized sturgeon eggs that are separated, cleaned and salt-cured. Fish eggs from non-sturgeon species are roe, but they are not true sturgeon caviar under the international Codex definition.

Is caviar a fish?

No. Caviar is not a fish or fish meat. It is the prepared roe of a female sturgeon. Several sturgeon species can produce caviar, so “caviar fish” refers generally to sturgeon rather than one specific fish.

What fish is real caviar from?

Real caviar comes from fish in the sturgeon family, Acipenseridae. Examples include Beluga, Russian, Siberian, White, Stellate and Shovelnose sturgeon, along with clearly labeled recognized hybrids.

Are salmon eggs caviar?

Salmon eggs are salmon roe, commonly called ikura in Japanese cuisine. They may be marketed informally as salmon caviar, but they are not sturgeon caviar.

Is caviar always black?

No. Sturgeon caviar may be silver, gray, olive, amber, brown, charcoal or near-black. Color varies by species and individual fish and is not a standalone measure of quality.

Is caviar raw or cooked?

Traditional caviar is salt-cured rather than cooked. Some commercial products may be pasteurized to extend shelf life, which can change the eggs’ texture. Check the label for the specific processing method.

What does “malossol” mean?

Malossol is a Russian-derived term meaning “little salt.” In caviar retail it generally describes lightly salted roe, but it does not identify the fish species or guarantee a particular quality grade.

Why is caviar considered a delicacy?

Caviar combines a distinctive sensory experience with limited, slow-to-produce supply. Sturgeon can take years to mature, and producing consistent caviar requires specialized aquaculture, skilled processing, grading and refrigerated distribution.

How do you spell caviar?

The standard English spelling is caviar. Caviare is an accepted variant used less often. Common misspellings include cavier, cavair and cabiar.

The Bottom Line

Caviar means salt-cured roe from sturgeon. The term does not technically include salmon, trout, tobiko, masago or other non-sturgeon eggs, although those products may be sold with a qualifying name such as “salmon caviar.” Authenticity begins with the fish source: check the species, ingredients, origin, cold-chain handling and traceability information on the label.