Does organic wine contain sulfites?
Quick answer
Yes, organic wine does contain sulfites — just less than conventional wine. EU regulations (since 2012) cap sulfites at 100 mg/L for organic reds and 150 mg/L for organic whites/rosés, versus 150 and 200 mg/L for conventional. Plus, fermentation naturally produces 10-30 mg/L of sulfites even with zero additions.
Detailed answer
Sulfites (sulphur dioxide, SO₂) have been used in winemaking since Roman times as an antioxidant and antiseptic. Even a wine made with zero sulfite additions naturally contains 10-30 mg/L, because yeast produces them during fermentation.
EU organic wine regulations (since 2012) set lower maximum limits than conventional wine. Dry organic reds: 100 mg/L (vs 150 mg/L conventional). Dry organic whites/rosés: 150 mg/L (vs 200 mg/L). Sweet organic wines: 270 mg/L (vs 300-400 mg/L). The difference is meaningful but not dramatic.
The 'contains sulfites' label is mandatory whenever levels exceed 10 mg/L — which means virtually all wines, organic or not.
'Natural wine' (no official certification) goes further than organic: natural winemakers add zero sulfites or tiny amounts (under 30 mg/L total). These wines are more fragile and need cool storage (10-12°C).
Demeter-certified biodynamic wines have even stricter limits than organic: 70 mg/L for dry reds and 90 mg/L for dry whites.
For sulfite-sensitive people (estimated at 1-3% of the population, mainly asthmatics), natural or biodynamic wines are the best options. If you suspect sulfite intolerance, consult a healthcare professional.
| Wine Type | Max Sulfites (dry red) | Max Sulfites (dry white/rosé) | Certification |
|---|---|---|---|
| Conventional | 150 mg/L | 200 mg/L | None required |
| Organic (EU) | 100 mg/L | 150 mg/L | EU Organic leaf |
| Biodynamic (Demeter) | 70 mg/L | 90 mg/L | Demeter label |
| Natural (no official label) | 0-30 mg/L | 0-30 mg/L | No official label |
| Natural sulfites (zero added) | 10-30 mg/L | 10-30 mg/L | — |