Guide · Store and check
How long cigars last in a humidor
What a working humidor does to shelf life, what actually kills a cigar in storage, and why Cigarbench does not tell you when one is ready.
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In a humidor held between 65% and 72% relative humidity and below about 21°C (70°F), a cigar keeps indefinitely. There is no expiry date. That RH band is Boveda's published one; the old "70/70" rule of thumb sits at the top of it, and plenty of smokers now keep cigars drier than that on purpose. Cigars in properly kept collections are decades old and still smokeable.
That is the whole honest answer. The rest of this page is about what "properly kept" means, and about the claim we will not make.
Out of a humidor
A cigar left in open room air dries out. How fast depends on the room, and no reputable source publishes a timetable for it, so we will not print one either. The order is dependable even though the dates are not:
- First the wrapper stiffens and the draw changes.
- Then the smoke turns hot and harsh.
- Then the wrapper cracks when you handle it.
- Cellophane slows this down, but it does not stop it. Cellophane is porous.
A dried cigar can be brought back over weeks of slow rehydration and it will usually be smokeable, but the oils lost along the way do not return. Bringing it back fast — a wet sponge, a plastic bag — splits the wrapper, because the filler swells before the wrapper does.
What actually ruins cigars in storage
Time is not the threat. These are:
- Too much humidity. Above Boveda's published ceiling of 72% the tobacco stays damp and the draw goes tight; given weeks of it, mould is the risk. Sources put the mould line anywhere from the low to the high 70s, so treat 72% as the point to stop adding water, not as a cliff edge.
- Swings in humidity. Repeated swelling and shrinking cracks wrappers. A steady 68% is better than an average of 68% that moves between 60 and 76.
- Heat. Tobacco beetle eggs are present in tobacco from the field, and Cigar Aficionado puts hatching at above 72°F (22°C) with humidity above 72%. Both conditions are needed, which is why the standard advice pairs a temperature ceiling with an RH ceiling. The beetle bores a clean round hole straight through the cigar and can move through a whole box. Keep the humidor cool; a hot cupboard in summer is how people lose one.
- Strong smells. Cedar is intentional. Fresh paint, aromatic wood other than cedar, and scented oils are absorbed by tobacco and are slow and hard to get out again. Airing the humidor is the usual remedy, and it takes time.
- Direct sunlight, which both heats the box and fades the wrapper.
Rest is not the same as ageing
Two different things get called ageing.
Rest is short. A cigar that has just been shipped has been shaken and has swung in humidity, and sitting still in your humidor lets it settle to one moisture level. How long is not settled: Famous Smoke Shop says a few days to a few weeks and argues that well-packed cigars arrive fit to smoke, while plenty of smokers hold a new box for a month. Anyone quoting you a single number is quoting a preference.
Long ageing — years — is genuinely debated. Some blends are widely reported to change. Others flatten out. Which of those a given cigar does depends on the blend, the storage, and the person tasting it.
What Cigarbench will not tell you
We hold no ageing data, so we do not say when a cigar is ready.
The Cigarbench humidor counts how long each cigar has been resting and shows you that number: "rested 17 months" is a fact we can check. "Ready to smoke" would be an opinion we have no evidence for, dressed as a measurement. We are not going to print it.
The same applies to mould. We cannot tell you whether the white on your cigar is plume or mould, because that needs a photograph and a judgement, and being wrong means telling somebody to smoke mould. The pinned guide in r/cigars is the reference the community itself uses. Go there.