The Truth About Sulfites in Wine

Sulfites are the most misunderstood topic in wine. Let's clear it up.

Sulfur dioxide (SO2) is a preservative and antioxidant used in winemaking for centuries. It prevents spoilage and oxidation. Conventional wines can contain up to 350 mg/L. Natural wines typically use less than 30 mg/L, and many use zero.

The headache myth: sulfites don't cause wine headaches for most people. Dried apricots contain 5-10x more sulfites than wine. If you can eat dried fruit without a headache, sulfites aren't your problem. The more likely culprits are histamines, tannins, or simply dehydration.

That said, about 1% of people have genuine sulfite sensitivity (more common in asthmatics). For them, low-sulfite natural wines are genuinely better.

What sulfites DO affect is the wine itself. High sulfite levels can mute flavors, strip aromatics, and make wine taste flat and uniform. Low-sulfite wines tend to be more expressive, more alive, more... funky.

The natural wine argument isn't really about health — it's about taste. When you remove the safety net of sulfites, you get wine that's riskier but more rewarding. Some bottles are transcendent. Some are challenging. That's the deal.

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