Wine fault
Excessive sulfur dioxide
A sharp, catchy smell like a struck match or a just-lit firework, sometimes prickling the nose or throat.
What you notice
Smell
- A sharp, catchy smell like a struck match — also seen in Reduction
- Prickles the nose or catches at the back of the throat
What it is
Sulfur dioxide has been used in winemaking for centuries as an antioxidant and antimicrobial. It is present in nearly all wine, including most labelled "no added sulfites", because fermentation produces some naturally.
The fault is excess, not presence. In normal quantities it is imperceptible.
It frequently blows off with air and a little time in the glass, so it is worth waiting before judging.
The "sulfites cause my headache" belief is very widespread and poorly supported: dried apricots contain far more sulfite than wine and are not associated with headaches. Sulfite sensitivity is real but rare, and presents as an asthmatic reaction rather than a headache. WineHQ does not endorse the headache claim.
What causes it
- Too much sulfur dioxide added at bottling.
- A recently bottled wine that has not had time to integrate it.
Can I fix it?
Yes — air often fixes it
Usually. Free sulfur dioxide is volatile and aeration disperses it, often within fifteen minutes.
What you can do
- Decant or swirl vigorously and leave it fifteen minutes.
- If it persists strongly, the wine is faulty.
What does not work
Published because a reader holding a spoiled bottle has usually already been told to try one of these. Correcting the specific wrong advice is more use than stating the right answer beside it in silence.
- Deciding immediately on opening
- The struck-match note on first pour is common and frequently gone by the second glass. Judging a bottle in the first thirty seconds is the commonest way to write off a sound wine.
Is it safe to drink?
Safe for most people, not for everyone
No general health concern, but a specific group of people has a real reason to avoid it. See below.
For nearly everyone, yes. A small number of people — mostly with severe asthma — have a genuine sulfite sensitivity and should avoid it; that is a medical matter for them and their clinician, not something WineHQ can advise on.
People with severe asthma, and the small number with a diagnosed sulfite sensitivity, should avoid a wine that smells sharply of struck match or burnt rubber and should treat the labelled sulfite declaration as the relevant information. For everyone else this is a smell rather than a hazard.
Can I take it back?
If it is still overwhelming after aeration, yes.
Sources
Sources consulted
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