The Complete Guide to Caviar: Everything Worth Knowing

By Beleaev Family | International Caviar & Gourmet, Head Office London | beleaev.com

Twenty years. That's how long a Beluga sturgeon lives before it produces a single egg. Two decades of patience for something that vanishes on your tongue in seconds. No other food demands that kind of sacrifice, and nothing else tastes like the reward.

This is the only caviar guide you'll need. Whether you're cracking your first tin or your fiftieth, everything that matters is here: what caviar actually is, how it's made, what each type tastes like, and how to eat it without overthinking things. No pretension. Just genuine expertise from people who handle these eggs every day.

Key Takeaways
- True caviar comes only from sturgeon; salmon and trout roe don't qualify
- Beluga is rarest; Oscietra offers the best balance of flavour and value
- Never use a metal spoon (mother of pearl, bone, or horn only)
- 30g serves one generously or two as a tasting
- Ready to taste? Explore the Beleaev caviar collection and find out what the fuss is about

What Is Caviar, Exactly?

Caviar is salt-cured sturgeon roe. Nothing else. Under the FAO Codex Alimentarius (2023), only eggs from the family Acipenseridae can legally be labelled "caviar" in international trade. Everything else is roe.

That distinction matters. Walk into any supermarket and you'll find jars labelled "salmon caviar" or "lumpfish caviar." Calling them caviar is like calling prosecco champagne. Technically bubbly. Legally wrong.

Roe is fish eggs from any fish. Caviar is a specific preparation: sturgeon roe, cured with 3-5% salt by weight. The word "malossol" on a tin means "little salt," the lightest possible cure. It's a quality marker, not a brand.

Every tin of legitimate caviar carries a CITES code, an alphanumeric identifier from the Convention on International Trade in Endangered Species. It tells you the species, country of origin, year of harvest, and the specific farm. All 27 sturgeon species are CITES-listed (CITES.org, 2024). No code on the tin? Don't buy it.

How Did Caviar Become a Luxury?

Caviar consumption traces back to Persian fishermen on the Caspian Sea, around the 4th century BC. The word likely derives from the Persian "khaviar," though linguists still debate its exact origins.

Caviar's luxury status crystallised under the Russian Empire. By the 18th century, the Romanov tsars held monopoly rights over Caspian sturgeon. Peter the Great appointed a dedicated "caviar chancellor."

A fact that surprises people: America was once the world's largest caviar producer. In the 1880s, lake sturgeon were so plentiful that bars gave caviar away free, like peanuts, to encourage beer sales. By 1900, overfishing had wiped those populations out.

The Near-Extinction Crisis

After the Soviet collapse in 1991, Caspian fishing became a free-for-all. Between 1978 and 2002, Caspian Beluga sturgeon populations fell by 90% (WWF, 2021). Annual production crashed from 3,000 tonnes to under 50 by 2005.

Modern caviar farming changed everything. Italy, France, China, Israel and Uruguay all built sophisticated aquaculture operations. Is farmed caviar as good as wild Caspian? Sometimes it's better. Wild caviar was inconsistent. Modern farms manage every variable, creating products of extraordinary consistency.

What Are the Different Types of Caviar?

Each type has a distinct personality. This is what they actually taste like.

Beluga (Huso huso)

Beluga is the king. Full stop.

Beluga produces the largest eggs of any sturgeon: 3.0-3.5mm in diameter. Colour ranges from light silver-grey to dark charcoal. The flavour is buttery, creamy, with an oceanic richness that lingers long after the pearls dissolve. The membrane is so delicate that each egg practically melts on the tongue.

Imagine opening a tin on a winter evening. Silver-grey pearls glistening under candlelight. One spoonful and you understand why people have fought wars over this fish.

One catch: Beluga don't mature until 15-20 years. Some females take 25. That biology makes this the most expensive caviar in the world, at £80 to £150+ per 30g.

Best for: Celebrations. Purists. Anyone who wants to understand what all the fuss is about.

Oscietra (Acipenser gueldenstaedtii)

If Beluga is the king, Oscietra is the connoisseur's choice.

Medium eggs, 2.5-3.0mm, with colours spanning golden amber to deep brown. The golden variety (sometimes called "Imperial") was historically reserved for royalty. The flavour is nutty, layered, with notes of walnut, sea breeze, and toasted brioche. It's the most interesting caviar to taste, because every tin reveals something new.

Matures in 8-12 years. Prices: £80-£180 per 30g.

Best for: Regular enjoyment. Pairing with food. Gifting to someone who appreciates subtlety.

Sevruga (Acipenser stellatus)

Sevruga is the smallest-grained of the "big three," with eggs around 2.0-2.5mm. Don't mistake small for inferior. Sevruga has the most intense flavour of any sturgeon caviar: briny, assertive, with a clean mineral finish that snaps you to attention.

Matures in 7-10 years. Prices: £60-£130 per 30g.

Best for: Bold-flavour lovers. Vodka pairings. Blini with all the trimmings.

Kaluga (Huso dauricus)

Beluga's cousin. Large eggs (2.8-3.2mm) with a remarkably similar flavour profile: rich, creamy, buttery. Some tasters can't tell them apart blind.

Because Kaluga farming is well-established in China, prices are friendlier, at £70-£150 per 30g. For anyone who wants the Beluga experience without the price tag, this is the answer.

Best for: Smart shoppers. Entertaining. Discovering whether you prefer creamy or nutty profiles.

Baeri (Acipenser baerii)

Siberian sturgeon caviar, and the workhorse of European aquaculture, especially in France and Italy. Baeri adapts well to farming and matures in just 5-7 years.

Small to medium eggs, 2.0-2.5mm, usually dark brown to black. Mild, buttery, with a gentle sea-salt finish. Approachable and honest. If you're new to caviar, start here.

Prices: £40-£90 per 30g.

Best for: Beginners. Cooking (it holds up in warm dishes). Everyday luxury.

Salmon Roe (Ikura)

Not caviar. But it deserves its place in any complete guide because it's excellent in its own right.

Large eggs (5-8mm), bright orange-red, and they pop dramatically on the tongue. Clean, mildly briny, with a distinctive sweetness. A staple in Japanese cuisine and increasingly popular in European kitchens. Prices: £15-£40 per 100g.

Best for: Sushi. Garnishing. That satisfying "pop" without the premium price.

How Is Caviar Made?

Modern caviar production requires extraordinary patience. Even fast-maturing Baeri need 5-7 years. No other luxury food demands this kind of timeline.

The Long Wait

A sturgeon egg is placed in a hatchery tank. Water temperature: 15-20°C, carefully controlled. The fish grows. For years. The farm monitors water quality, oxygen levels, and feeding schedules obsessively. A single disease outbreak could wipe out a decade's investment.

At maturity, females are checked via ultrasound to assess egg development. Only when eggs reach optimal size and firmness does harvest begin.

Harvesting and Grading

Eggs are removed, rinsed, and passed through sieves to separate by size.

What matters most is speed. Premium producers complete the entire process, from live fish to sealed tin, within 15-20 minutes. That speed preserves the texture you're paying for.

Malossol: The Art of Salting

"Malossol" means "little salt" in Russian: 3-5% salt by weight. Less salt means more delicate flavour but shorter shelf life.

After salting, caviar is packed into tins and sealed with a rubber band under the lid to create light vacuum pressure. Then it's refrigerated at -2°C to +2°C. No cooking. No additives. No preservatives beyond salt. Just eggs and salt, perfected over centuries.

How Do You Eat Caviar Properly?

Simple. Here are the few rules that actually matter.

The Spoon Rule

Use mother of pearl, bone, horn, or gold. Never metal.

Why? Reactive metals (silver, stainless steel) interact chemically with caviar's oils, producing a metallic, bitter taste. It's not subtle; try it side by side and you'll never make the mistake again. Most quality retailers include a mother of pearl spoon with your order. Don't have one? Wood or plastic work fine. No one will judge you.

How Much Per Person?

For a tasting: 10-15g. A heaped teaspoon.

For a generous serving: 30g. The sweet spot for most occasions.

For a proper indulgence: 50g or more. At this point you're not tasting. You're dining.

Temperature

Serve at -2 to 2°C. Take the tin from the fridge, open it, and serve within 15 minutes. Placing the tin on crushed ice looks elegant, but don't let melt-water seep in.

The First Bite

Place a small amount on the back of your hand, between thumb and forefinger. Your skin warms the caviar slightly, releasing aromatics without introducing competing flavours.

Then taste from a spoon. Let the eggs rest on your tongue. Press them gently against the roof of your mouth. The pearls should pop, a tiny, satisfying burst. Don't chew. Don't rush.

What should you taste? Salt first, always. Then the secondary notes unfold: butter, nuts, minerals, ocean, cream. Every variety is different. Every harvest, slightly different. That's part of the fascination.

Browse the Beleaev tasting sets for a guided exploration of different varieties, and the fastest way to discover what you love.

What Should You Serve with Caviar?

Presentation matters. But it needn't be complicated.

Classic Accompaniments

The Russian way: blini, creme fraiche, finely chopped egg whites and yolks served separately. Chives.

The French way: toast points with unsalted butter.

Both work beautifully. Honestly? Caviar on a warm, buttered toast point is hard to beat. Avoid raw onions, smoked fish, and anything acidic directly on the eggs. Accompaniments should provide texture contrast without competing.

Drinks Pairings

Champagne is the classic, but not any champagne. You want Brut or Extra Brut, dry and mineral. Blanc de Blancs (100% Chardonnay) is particularly good; its crisp acidity cuts through the richness.

Vodka is the Russian tradition. Ice-cold, neat. The clean spirit cleanses the palate between bites. There's a reason this pairing has lasted centuries.

Dry white wine works surprisingly well. Chablis, Sancerre, Muscadet. Mineral-driven, unoaked whites that won't overpower.

Beer is the dark horse. A cold, dry pilsner or a light saison. Don't dismiss it until you've tried it.

Never pair caviar with oaked Chardonnay, red wine, or cocktails with citrus.

Does Caviar Have Health Benefits?

A single 30g serving of sturgeon caviar is a rich source of omega-3 fatty acids, along with vitamin B12 and selenium (USDA FoodData Central, 2023). It's a remarkably nutrient-dense food, though the word "superfood" gets thrown around too freely these days.

The Nutritional Profile

Per 30g serving:

• Protein: 7.5g (complete amino acid profile)
• Omega-3 fatty acids: 3.2-3.5g (EPA and DHA)
• Vitamin B12: 6mcg (250% of daily reference intake)
• Selenium: 19mcg (35% of daily reference intake)
• Vitamin D: 3.5mcg
• Iron: 3.5mg

Omega-3s, vitamin E, and selenium are among the nutrients that make caviar prized beyond its flavour alone, which is why caviar extract appears in high-end skincare. But eating it delivers these nutrients more effectively than rubbing them on your face. Just a thought.

How Should You Store Caviar?

Proper storage is critical. Caviar is fresh and minimally processed, with no artificial preservatives.

Unopened Tins

Keep caviar in the coldest part of your fridge: the back of the bottom shelf. Ideal temperature: -2°C to +2°C. Most home fridges run at 3-5°C, which is acceptable. Unopened, it keeps 4-8 weeks.

Never freeze caviar. Freezing ruptures the egg membranes, destroying the texture. You'll end up with expensive, mushy paste.

Once Opened

Eat it. Seriously.

Opened caviar should be consumed within 2-3 days, kept refrigerated and covered tightly with cling film pressed against the surface of the eggs. Minimise air contact. If you can't finish an opened tin within 3 days, you bought too much for the occasion.

How Do You Buy Good Caviar in the UK?

Britain imported 22 tonnes of caviar in 2023 (HMRC Trade Statistics, 2024). Not all of it was good. Sorting the real from the questionable comes down to a few checks.

What to Look For

CITES code on the tin. Non-negotiable. No code means no traceability.

Clear species identification. The tin should name the sturgeon species. If it just says "caviar" with no species, be cautious.

Harvest or best-before date. Caviar isn't wine. It doesn't improve with age.

Refrigerated shipping. If your caviar arrives warm, return it.

Red Flags

• Prices that seem too good to be true (they are)
• No species identification on the packaging
• "Caviar" that's actually dyed lumpfish roe
• Shelf-stable caviar in glass jars (pasteurised, heavily salted, a different product entirely)

Why Sourcing Matters

Every sturgeon species is endangered or vulnerable. Buying from farms with proper CITES documentation supports sustainable aquaculture. The alternative (poached wild caviar) funds criminal networks and pushes sturgeon closer to extinction.

Further Reading

• Caspian Sea ecology (Britannica)
• history of caviar (Britannica)

FAQ

Is caviar fish eggs?

Yes, but only sturgeon eggs. All caviar is roe, but not all roe is caviar. Under international food standards, only salt-cured eggs from sturgeon species qualify. Salmon eggs, tobiko, and lumpfish roe are all "roe," regardless of how they're marketed.

Why is caviar so expensive?

Time. Beluga sturgeon need 15-20 years before their first harvest. Two decades of feeding, housing and monitoring a single fish, plus water purification, CITES compliance, and cold-chain logistics. The price reflects the wait.

How much caviar do I need per person?

Allow 10-15g for a tasting alongside other canapes. For caviar as the main event, 30g is generous. A 50g tin comfortably serves two for a special occasion.

Can you eat caviar when pregnant?

Pasteurised caviar is generally considered safe. Unpasteurised malossol carries a small listeria risk, similar to soft cheese. The NHS (2024) advises pregnant women to avoid raw or lightly cured fish unless previously frozen. Consult your GP.

What's the best caviar for beginners?

Start with Baeri or Oscietra. Baeri is mild and buttery, from £40 per 30g. Oscietra offers more complexity at £80-£180. Try a 30g tin of each for a side-by-side tasting. That's the fastest way to learn what you prefer.

Open a Tin and Find Out

No guide, however thorough, replaces the experience of tasting. Reading about the buttery richness of Beluga or the nutty complexity of Oscietra only gets you so far. At some point, you need to open a tin and find out for yourself.

Explore the full Beleaev caviar collection. Every tin is CITES certified, responsibly farmed, and delivered within 24 to 48 hours from our nearest regional hub (UK, Europe, UAE, USA).

Explore the full caviar collection at Beleaev for next-day UK delivery.

Beleaev is an international caviar and gourmet house headquartered in London, with fulfilment hubs across the UK, Europe, the UAE, and the United States. We deliver responsibly farmed Beluga, Oscietra, Sevruga, and Kaluga caviar to customers in each region within 24 to 48 hours.