Ideal Humidor Humidity

Ask ten cigar smokers what humidity a humidor should hold and you'll hear "70%" nine times. It's a fine target, but the truth is a range, not a single magic number — and understanding that range is what keeps a collection smoking the way the blender intended.

The real target: 65–72% RH

Premium cigars rest best at 65–72% RH, kept somewhere around 65–70°F. Within that band the wrapper stays supple, the draw is open, and the burn is even. Many seasoned smokers actually prefer the lower end — 65–68% RH gives a slightly firmer, cooler, cleaner burn, while the high end keeps cigars feeling plush but can edge toward a tight draw. There's no single "correct" point inside the band; it's a matter of taste and how you like your cigars to smoke.

The nuance behind the "70/70 rule"

The famous "70/70" — 70% RH and 70°F — became gospel because it's easy to remember, not because it's optimal. Two cautions: first, 70°F is the warmer edge of comfortable. Tobacco beetle eggs can hatch above roughly 72°F at high humidity, and a hatch will riddle your cigars with pin-sized holes. Keeping temperature in the mid-60s°F is safer. Second, RH and temperature interact — a humidor that reads 70% at 65°F behaves differently than 70% at 75°F. Treat 70/70 as a ceiling-ish starting point, then dial in by taste.

Why each extreme hurts

Stability beats any single number

The most overlooked rule: a humidor that holds 68% steadily ages cigars better than one swinging between 60% and 75%. Big swings make wrappers expand and contract, which is what actually splits them. Don't chase a perfect reading day to day — chase a flat line over weeks. Season your humidor properly, use a quality two-way humidification source (Boveda or Heartfelt beads in your chosen RH), and verify your hygrometer with a salt test so you're not correcting a number that was wrong to begin with.

The only way to know your humidor is stable is to watch the trend, not a single glance. Log RH and temperature over time and the drift — seasonal, post-opening, or a failing humidification device — becomes obvious before it costs you a box.

Track your humidor's RH for free →

CigarLog is a free, offline humidor & cigar collection log. See also how to season a new humidor and long-term storage & aging. 100% private — your data never leaves your browser.