You’ve probably heard someone say that sulphites in wine cause headaches or hangovers. Maybe you’ve picked up a bottle, noticed the words “Contains Sulphites” on the label, and wondered what that actually means.
Are sulphites bad for you? Are they added chemicals? Is sulphite free wine actually a thing?
For years, sulphites have been one of wine’s most misunderstood topics.
Sulphites aren’t some strange chemical secretly added to wine. They’re a natural part of winemaking itself. The key difference is how much is used, why it’s used, and the regulations governing it.
This is where European wine stands apart.
Photo: Champagne wine region, France
So, What Are Sulphites in Wine?
Sulphites are naturally occurring compounds created during fermentation. Even if a winemaker adds absolutely nothing, wine will still contain small amounts of naturally occurring sulphites.
That means truly wine free of sulphites or completely non sulphite wine doesn’t technically exist.
Sulphites (sulfur dioxide / SO₂) are mainly used as a preservative, helping protect wine from:
- Oxidation
- Bacteria and spoilage
- Unwanted fermentation issues
- Loss of freshness during transport and storage
Without some form of protection, many wines simply wouldn’t survive the journey from vineyard to bottle.
Why Are Sulphites Added to Wine?
Wine is a living product, constantly changing and evolving. Unlike spirits or soft drink, wine is highly sensitive to oxygen, heat, bacteria, and transport conditions, all of which can dramatically affect how it tastes over time.
Sulphites help stabilise the wine and protect it from spoilage, allowing it to arrive in your glass tasting the way the winemaker intended.
However, not all wines use the same amount of sulphites.
Large-scale commercial wines often rely more heavily on additives and preservatives to maximise consistency, shelf stability, and large-scale production.
In contrast, many European wines - particularly those from smaller French and Italian producers - are made using more traditional, lower-intervention methods, often with lower sulphite levels and fewer additions overall.
Are Sulphites Bad for You?
For most people, sulphites are considered safe in the quantities found in wine.
In fact, sulphites are commonly used in foods like:
- Dried fruit
- Packaged salads
- Fruit juice
- Chips and processed foods
- Pickled products
Ironically, dried apricots often contain significantly more sulphites than wine.
That said, some people, particularly some asthmatics, can experience sulphite sensitivity, which may cause symptoms like wheezing, breathing irritation, skin reactions, or nasal congestion. This is different from a typical wine headache or hangover.
Do Sulphites Cause Wine Headaches?
Sulphites are often blamed for wine headaches - but research suggests they’re probably not the main culprit for most people.
If sulphites alone caused headaches, dried fruit would be causing absolute chaos.
Instead, wine headaches are more likely linked to a combination of factors including:
- Alcohol levels
- Histamines
- Tannins
- Sugar levels
- Dehydration
- Drinking quantity
- Additives and processing methods
This is why many experts believe headaches are more likely linked to the overall winemaking approach - including excessive sugar, additives, heavy processing, and higher alcohol levels - rather than sulphites alone.
European wine regulations, particularly in France and Italy, tend to strictly limit many of these additions, which is one reason many people report feeling better after drinking European wines.
Photo: Barolo wine region, Langhe, Piedmont, Italy
European Wine Regulations vs Australia
European wine laws, especially in France and Italy, are among the strictest in the world.
Many European appellation systems tightly regulate:
- Additives
- Farming methods
- Yields
- Processing techniques
- Sulphite usage
Organic European wines have even stricter sulphite limits again.
European organic producers are often required to work with significantly lower sulphite allowances than many conventional wines produced elsewhere.
This doesn’t automatically make Australian wine “bad” - there are many excellent Australian producers making low-intervention wines - however, Europe’s stricter regulations often encourage a more restrained, traditional approach to winemaking.
Maximum Permitted Sulphites (Total SO₂)
| Wine Style | France / Italy (EU) | Australia |
|---|---|---|
| Dry Red Wines | 150 mg/L | 250 mg/L |
| Dry White & Rosé Wines | 200 mg/L | 250 mg/L |
Under EU regulations, any wine containing more than 10mg/L of sulphites must display the phrase “Contains Sulphites” on the label.
In Australia, sulphite regulations are governed by Food Standards Australia New Zealand (FSANZ), which allows significantly higher maximum sulphite levels in many conventional wines.
Can You Buy Wine With No Added Sulphites?
Yes - although they’re usually labelled as:
- No added sulphites
- Low sulphite wine
- Natural wine
- Organic wine
However, they can also be less stable and more unpredictable. Without sulphites, wine becomes far more vulnerable to oxidation and spoilage.
That’s why many quality producers still use small amounts of sulphites - not to manipulate the wine, but simply to protect it.
The goal isn’t necessarily zero sulphites, but rather balance.
The Bottom Line
Sulphites in wine do exist, and some people have genuine sulphite sensitivity, but for most wine drinkers, the bigger issue is often the overall winemaking approach - excessive additives, heavy processing, and mass production.
This is where many European wines stand apart.
Smaller French and Italian producers often focus on lower-intervention winemaking, stricter regulations, and wines designed for balance and drinkability rather than shelf stability and volume. The result is often wine that feels cleaner, lighter, and simply easier to drink.
At the end of the day, wine should feel indulgent, effortless, and enjoyable - not something you need to overanalyse or recover from the next morning.
After a long week, you deserve a glass you can simply open, pour, and enjoy with confidence.