How to Season a New Humidor: Two Easy, Proven Methods

You just unboxed a beautiful new humidor, and every instinct says to fill it with cigars right now. Don't — not yet. A brand-new humidor will actively dry out your cigars if you skip one simple step. Learning how to season a new humidor is the difference between a box that protects your cigars and one that quietly ruins them in the first week. It's easy, mostly hands-off, and you only do it once.

Here's why it matters and exactly how to do it.

How to season a new humidor (and why you must)

A humidor is lined with Spanish cedar — bare, unsealed wood chosen because it loves moisture and helps cigars age. The catch: fresh out of the factory, that wood is bone-dry. Wood that dry is thirsty, and the easiest water for it to drink is the moisture inside your cigars.

Put cigars in an unseasoned humidor and the cedar pulls humidity straight out of them. Within days the wrappers dry, crack, and start to burn hot. The lining has to be brought up to the right moisture level first so it holds humidity steady instead of stealing it. That process is called seasoning, and the target is the same range cigars like to live in: about 65–72% relative humidity (RH).

There are two reliable ways to get there. Both end in the same place; one is just more hands-off than the other.

What you'll need either way

• A working hygrometer (the gauge that reads humidity). Make sure it's accurate first — see how to calibrate a hygrometer, because seasoning to a lying gauge defeats the point.
• Patience. This takes days, not hours.
• Never use tap water. Minerals and chemicals leave deposits and invite mold. Distilled water only, or no water at all.

Method 1: The Boveda (seasoning pack) method — easiest

Two-way humidity packs are sealed pouches that both release and absorb moisture to hold a set level. There's a higher-RH "seasoning" version (often 84%) made specifically for this job.

1. Place the seasoning pack(s) inside the closed humidor — one per small unit, more for larger ones (follow the pack's coverage guide).
2. Put your calibrated hygrometer inside too.
3. Close the lid and wait, untouched, for about two weeks. No opening to peek; every time you open it, the clock resets a little.
4. When the hygrometer holds steady in range and the seasoning pack feels firm/spent, remove it and swap in your normal storage packs (typically 69%), then add your cigars.

Why it's the favorite: it's almost impossible to over-do. The pack can't push humidity past its rating, so you can't accidentally soak the wood. Set it and forget it.

Method 2: The distilled-water method — classic and free

The traditional approach uses distilled water and a little care. The golden rule: never pour water onto or splash the wood — wet wood warps and grows mold. You want gentle, indirect moisture.

1. Lightly dampen a clean, lint-free cloth or sponge with distilled water — damp, not dripping. Wring it out well.
2. Wipe the interior cedar very lightly, or simply set the damp cloth on a small dish/bag inside so it doesn't touch the wood directly. Some people also fill the humidor's included humidification device with distilled water and set it inside.
3. Close the lid for 24 hours.
4. Re-dampen the cloth, repeat, and check the hygrometer.
5. Continue for 2–4 days until the reading sits steady in the 65–72% range. Then remove the cloth, charge your humidification device, and add cigars.

The trade-off: it can settle faster than the pack method, but it's easier to over-wet, which risks the dreaded "too humid" problems — a tight draw and mold. Go slow and let readings guide you.

Whichever method you use, the humidor is ready only when the hygrometer holds steady on its own. If the number is still rising, or it drops fast after you close the lid, the wood wants more time. Don't rush cigars in.

How long does seasoning take?

• Boveda/seasoning packs: about 1–2 weeks, fully hands-off.
• Distilled-water method: often 2–4 days, but it needs checking.

Either way, "done" is defined by a stable reading, not the calendar. A bigger humidor takes longer than a small one.

After it's seasoned: keep it stable

Once your humidor holds humidity, maintaining it is mostly about recharging or replacing your two-way packs on schedule. Not sure how many to use day to day? Our guide on how many Boveda packs you need breaks it down by size. And if a cigar slips through dry before the humidor was ready, you can often save it — see how to rehydrate a dry cigar.

While you wait for the wood to settle, you don't have to leave cigars exposed — a sealed container with a humidity pack (a tupperdor) keeps them safe in the meantime.

Quick recap

Knowing how to season a new humidor saves your cigars from a dry, cracked first week. The bare cedar lining has to absorb moisture before it can hold it, so bring it up to 65–72% RH using either hands-off seasoning packs (about two weeks) or the careful distilled-water method (a few days) — never tap water, and never until the hygrometer holds steady. Do it once and your humidor is ready for years.

When it's seasoned and stocked, keep a record of what's inside with the Casa DNC app — what's resting, what's ready, and how each one smoked.