Egg Albumin (Wine Fining) — Hidden Processing Agent — Is It Vegan?
Also known as: Egg white, Egg white fining, Ovalbumin
Not Vegan
This processing agent is derived from animals or their byproducts.
Not required on labels
Same EU 2012 allergen disclosure rules apply as for casein — if egg allergen residue is detectable above threshold, 'Contains egg' must be declared. Many premium wines declare this voluntarily. Outside the EU, no requirement.
Source
Used In
How to Avoid
Editorial Notes
Egg white fining is considered a marker of traditional, 'natural' winemaking in some circles — particularly in Burgundy. The irony is that 'traditional' wine is often less vegan than modern wine. Some producers use pasteurized egg white powder as a more consistent alternative to fresh egg whites.
In depth
How Egg White Fining Works
Fining is a clarification step used near the end of winemaking to remove suspended particles and excess tannins that make young red wine taste harsh or astringent. Egg white is one of the oldest protein finings. The albumin protein carries a positive charge in wine's acidic environment, so it binds to negatively charged tannin molecules, forming clumps that settle to the bottom of the barrel or tank.
Winemakers typically whisk a small number of egg whites — often cited as roughly two to eight per barrel — sometimes with a pinch of salt to help dissolve the protein. The mixture is stirred into the wine, left to act over days or weeks, and the wine is then racked off the sediment. Because egg white acts gently and selectively, it is prized for softening structure without stripping color or aroma, which is why it remains associated with premium red wine.
After fining, the protein and bound tannins are discarded as sediment, so only trace residues, if any, remain in the finished wine.
Why It Rarely Appears on the Label
Egg white is a processing aid, not an ingredient. It is added during production and then removed with the sediment, so in most markets it does not have to be listed the way an ingredient would. This is why a wine finished with egg white can look identical on the shelf to one that is vegan-friendly.
The main exception is allergen labeling. In the European Union, rules that took effect in 2012 require that egg-derived finings be declared — commonly as 'Contains egg' or a similar statement — when residues are detectable above a defined threshold. Many premium producers declare it voluntarily even when not strictly required. Outside the EU, there is generally no obligation to disclose fining agents at all.
The practical consequence is that consumers usually cannot tell from the front label whether a red wine was fined with egg white, animal-derived gelatin, isinglass, milk-derived casein, or a plant or mineral alternative. Independent databases and explicit 'vegan' certification are the reliable signals.
Vegan Alternatives and How They Compare
Several fining agents achieve similar clarity without animal products. Bentonite, a naturally occurring clay, is the most common; it carries an electrical charge that binds proteins and haze-forming particles and is widely used across both conventional and vegan production. Activated carbon, pea protein, potato protein, and plant-derived alternatives are also used to reduce tannin or adjust color.
Many winemakers also skip fining entirely. Wines labeled 'unfined' or 'unfiltered' are allowed to settle naturally over time, which can leave slight sediment but avoids any fining agent. This approach is common among natural and small-batch producers.
Compared with egg white, mineral and plant finings are consistent and avoid the egg and milk allergen declarations required in some markets, and they suit vegan and most religious dietary frameworks. Some traditional producers argue that egg white treats tannin more gently, but plant proteins have improved and are increasingly used for the same purpose. For a shopper, a wine marked 'vegan' or 'unfined' signals that no egg-based fining was involved.
Where It Shows Up in Practice
Egg white fining is most strongly associated with structured red wines, particularly in classic French regions such as Bordeaux and Burgundy, where it is treated as part of traditional practice. It is less common in whites and rosés, which more often use bentonite because their clarity issues are protein-related rather than tannin-related.
Because 'traditional' and 'natural' are sometimes assumed to mean vegan, egg white fining is a frequent surprise for consumers. A heritage estate wine may in fact be less vegan-friendly than a modern, industrially produced bottle that relies on bentonite. Egg-based fining also appears occasionally in some craft spirits production, though it is far more established in wine.
Across categories, the reliable approach is the same: rather than inferring from price, region, or 'natural' marketing, check for explicit vegan labeling or consult a fining database that tracks each producer's methods.
Frequently asked questions
Is wine fined with egg white vegan?
No. Egg white is an animal-derived protein taken from hen's eggs, so any wine fined with it is not vegan, even though the egg white is removed before bottling. Only trace residues, if any, remain, but the process still uses an animal product. Choose wines labeled 'vegan' or 'unfined' to avoid it.
Does egg white stay in the finished wine?
Almost none of it does. Egg white binds to tannins and settles as sediment, which is then separated from the wine, so the finished product typically contains only trace residues at most. In the EU, if egg residue is detectable above the allergen threshold, the label must declare it.
How can I tell if a wine was fined with egg white?
You usually cannot tell from the front label, because fining agents are processing aids and are not listed as ingredients in most markets. Look instead for 'vegan', 'unfined', or 'unfiltered' on the label, or check an independent database such as Barnivore. In the EU, an allergen statement like 'Contains egg' is a direct signal.
What is used instead of egg white to fine vegan wine?
Bentonite, a natural clay, is the most common vegan fining agent, and plant proteins such as pea or potato protein are also used. Some producers skip fining altogether and let the wine settle naturally, labeling it 'unfined' or 'unfiltered'. These methods achieve similar clarity without any animal product.
Are traditional or natural wines more likely to contain egg white?
Sometimes, yes. Egg white fining is a longstanding practice in classic regions like Bordeaux and Burgundy, so a 'traditional' red can be less vegan-friendly than a modern bottle fined with bentonite. Do not assume 'natural' means vegan — verify with a vegan label or a fining database.