What Is Caviar? A Plain-English Definition

Salt alone does not make caviar. Salted salmon eggs remain salmon roe; the fish matters as much as the preparation.

Caviar is the salted eggs of sturgeon, prepared and packed as a food. The definition is simple. The finer distinctions come from food standards, customs classifications, wildlife-trade rules and US labelling guidance, which use the word in slightly different ways.

What does roe mean?

Roe means fish eggs, including eggs still held together in the ovary. It is the broader term. Caviar is one preparation of roe, not another name for every kind of fish egg.

Two questions make the distinction clear: which fish supplied the eggs, and how were those eggs prepared? Those answers tell you more than the word “caviar” alone. For the fuller explanation, read caviar versus roe. The what is caviar hub maps the wider subject.

What makes roe into caviar?

Salt is essential, but so is the fish. Salting salmon eggs produces salted salmon roe. It does not turn them into sturgeon caviar.

Small round beads do not necessarily come from a fish: check the descriptive name and ingredients to see what they are made from.

For the granular sturgeon caviar covered by Codex, preparation means separating the eggs from the surrounding ovarian tissue, treating them with food-grade salt and packing them into suitable containers. “Granular” describes the result: individual beads, rather than eggs pressed into a mass.

Sturgeon eggs alone are the raw material, not yet the salted food described by Codex.

Which fish count as caviar?

Paddlefish show why the definition depends on the document. They belong to Acipenseriformes, the order that also contains sturgeons, but not to Acipenseridae, the sturgeon family. Their processed roe falls within the wildlife-trade definition while remaining outside the Codex sturgeon-caviar standard. The paddlefish roe guide explores that distinction.

Each document has a different job. Codex describes a food. Customs schedules classify goods crossing borders. CITES, the Convention on International Trade in Endangered Species of Wild Fauna and Flora, provides a wildlife-trade framework. FDA guidance addresses food naming in the United States.

These documents also carry different legal weight. Codex is an international reference standard; its standards become enforceable when adopted into legislation, rather than automatically binding national law. The EU tariff entries sit within heading 1604. Their distinction between caviar and caviar substitutes classifies goods for customs purposes, rather than providing a complete rule for the words permitted on a shop label.

Why labels sometimes say salmon caviar

Read the whole name. Under US FDA policy, “caviar” without a fish name should mean salted sturgeon roe. Roe from another fish may be called “salmon caviar” or “whitefish caviar”, with the fish identified by its common or usual name. All words should have substantially the same size and prominence. Permitted artificial colouring requires a prominent declaration, and ingredients should be listed.

These provisions come from Compliance Policy Guide section 540.150, an enforcement policy published as final guidance, rather than a formal standard of identity. It explains the FDA’s approach to naming; it does not replace the binding law against misleading food labels.

In the EU, Article 7 of Regulation (EU) No 1169/2011 requires food information not to mislead about identity or composition. Great Britain applies its assimilated version of that regulation; EU food-information law generally continues to apply in Northern Ireland. Whether a particular retail presentation is misleading cannot be settled by its customs description alone.

Everyday speech also extends “caviar” to other prepared fish eggs, as in salmon caviar and lumpfish caviar. Neither fish is a sturgeon, but a qualified name need not claim otherwise. The practical question is: what does the full food name say it is?

And plant-based caviar?

Plant-based caviar is an imitation or culinary comparison, not fish roe. Small round beads do not necessarily come from a fish: check the descriptive name and ingredients to see what they are made from.

That distinction concerns ingredients and biological origin, not how the food should be enjoyed. An imitation can play a similar role on the plate without sharing the same source. Keeping the terms clear makes recipes and menus easier to understand, whether they call for fish eggs or something designed to take their place.

The guide to things called caviar that are not roe separates these uses from fish eggs.

Which kind, and where did the word begin?

“Sturgeon” names a family, not a single fish. Once you know that a food is sturgeon caviar, the species is the next useful distinction.

The complete caviar guide introduces the different kinds, keeping trade names distinct from scientific identification.

Then there is the word itself, with a history separate from its current regulatory meaning. Follow where the word caviar comes from to explore the language and its development.