Ideal Humidity for Cigars

The ideal humidity for storing cigars is 65 to 70 percent relative humidity, paired with a temperature of around 18 to 21 degrees Celsius (65 to 70 Fahrenheit). Within that range, cigars stay supple, burn evenly, and taste their best. Many smokers actually prefer the lower end, around 65 percent, for a firmer cigar and a cleaner burn.

The classic "70/70" rule

You will often hear the 70/70 rule: 70 percent humidity and 70 degrees Fahrenheit. It is a simple, memorable starting point and it works. However, many experienced smokers find 70 percent slightly too moist, leading to a tighter draw and a slower burn. That is why the modern recommendation is a range, not a single number.

Why many prefer 65 percent

Storing at the lower end, around 62 to 65 percent, offers some advantages:

• A firmer cigar that is less likely to feel spongy
• An easier, more open draw
• A cleaner, more even burn
• Less risk of mold at the margins

It comes down to preference. Try cigars stored at 65 and at 70 percent and see which draw and burn you like better.

What happens outside the ideal range

Too dry (below about 60 percent)

• The wrapper becomes brittle and can crack
• The cigar burns hot and fast
• Flavor turns harsh and the oils fade

Too humid (above about 72 percent)

• The cigar feels spongy and draws tightly
• It can be hard to keep lit
• Higher risk of mold and tobacco beetle activity

Don't forget temperature

Humidity and temperature work together. Warm temperatures (above about 24 degrees Celsius / 75 Fahrenheit) can wake up tobacco beetles, whose eggs are naturally present in tobacco, and a beetle outbreak can destroy a collection. Keep your humidor somewhere cool, dark, and stable. Consistency matters more than hitting an exact number.

How to hold the right level

• Use two-way humidity packs (65 or 69 percent) for effortless stability.
• Keep a calibrated hygrometer so you actually know your level.
• Avoid opening the humidor constantly, which lets humidity swing.
• Keep it out of direct sun and away from heat sources.

Where to go next

Choose your humidification in humidity packs vs beads, set up a new box in how to season a humidor, and fix problems in how to fix dry cigars.