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A beginner's guide to the humidor

What a humidor does, why your cigars need one, and how to set one up at home without overthinking it.

Field notes7 min readUpdated 2026-05-19

The short answer

A humidor is a sealed cedar-lined box that holds cigars at 65 to 72 percent relative humidity. Without one, cigars dry out within a week, the wrappers crack, and the flavor flattens. A small desktop humidor with Boveda packs and a digital hygrometer will hold a dozen cigars in proper shape indefinitely.

From the counter · The walk-in, held at 70/70 year-round.

01 · What a humidor actually does

What a humidor actually does

A humidor is a sealed container, almost always cedar-lined, that holds cigars at a stable relative humidity. Cigars are a tropical product. They were grown, fermented, and rolled in air that runs 70 percent humidity year-round. Take them out of that environment and the oils in the leaf start to evaporate. Within days the wrapper feels papery. Within weeks the cigar burns hot and tastes like cardboard.

The humidor is a small piece of Caribbean air that you keep in your living room. Done right, it adds nothing to your cigar experience. Done wrong, it ruins every box you ever buy.

02 · The numbers that matter

The numbers that matter

Two numbers, and you are done. Temperature should sit between 65 and 70 degrees Fahrenheit. Relative humidity should sit between 65 and 72 percent. The classic ratio is 70 degrees and 70 percent, called 70/70. The Tobacco Shack walk-in is held there year-round.

Within the 65 to 72 percent humidity window, lower humidity gives you a faster, hotter burn and a sharper flavor. Higher humidity gives you a slower, cooler burn and a softer flavor. Most American smokers settle around 65 to 68 percent for daily smokers and 70 to 72 percent for cigars they plan to age.

03 · What you need to start

What you need to start

Four items, and you are ready. Total cost can run from forty dollars to four hundred depending on the box you choose.

  1. A cedar-lined humidor sized for what you actually smoke. A 25-count desktop is plenty for most people. Bigger is not better unless you plan to age boxes.
  2. Two-ounce Boveda packs at 65, 69, or 72 percent. Boveda is a two-way humidity control system, meaning it both adds and removes moisture as needed. Drop in one pack per fifty cigars of capacity.
  3. A digital hygrometer. Analog hygrometers are decorative, not accurate. A small digital reads to within 1 percent and runs on a watch battery.
  4. Distilled water, only if you are using an old-school sponge or floral foam humidifier. With Boveda you can skip this.

04 · Seasoning a new humidor

Seasoning a new humidor

A new humidor arrives bone dry. Drop your Boveda packs inside, close the lid, and wait two weeks. The cedar absorbs moisture from the packs and reaches equilibrium. If you load cigars before seasoning is done, the cedar pulls moisture out of the wrappers and dries them out faster than open air would.

After two weeks, check the hygrometer. If it reads within 2 percent of your target, you are seasoned. Add cigars. Re-check in another week to make sure the new arrivals have not knocked the room off balance.

05 · Common mistakes

Common mistakes

Three errors account for nine out of ten ruined humidors. Avoid these and you will be fine.

  • Overfilling. Stuffing a 25-count box with 40 cigars cuts off airflow. The cigars in the middle stay too humid. Leave room for air to move.
  • Tap water. Tap water carries minerals that grow mold on cedar. If you are not using Boveda, use distilled water only.
  • Skipping the hygrometer. The lid feels heavy and the cedar smells nice, but without a hygrometer you have no idea what is actually happening inside. Spend the ten dollars.

06 · The lazy shortcut

The lazy shortcut

If you do not want to buy a humidor at all, a sealed plastic container with a tight-fitting lid plus Boveda packs is a perfectly valid storage solution. Cigar World calls these tupperdors. They lack the cedar aroma and the look of a wooden box, but they hold cigars at stable humidity just as well. Lots of people age boxes for years in tupperdors.

The follow-up questions

Questions we hear at the counter.

Plain answers to the follow-ups that come up most after this one.

How long do cigars last in a properly maintained humidor?

Indefinitely. Cigars in a humidor held at 65 to 72 percent humidity will improve for the first five to ten years as the tobacco continues to ferment slowly. Beyond that they stabilize and can be smoked at any point. The oldest cigars in our walk-in are over a decade old.

Do I need to rotate the cigars in my humidor?

If your humidor is small and well-sealed, no. If you have a large humidor with a Boveda pack only in one corner, rotate the boxes once a month so the cigars closest to the pack do not over-humidify while the ones at the far end dry out.

What is the difference between a humidor and a tupperdor?

A humidor is a cedar-lined wooden box. A tupperdor is a sealed plastic container. Both will hold cigars at stable humidity if you use Boveda packs and a digital hygrometer. The humidor smells better and looks better. The tupperdor is cheaper and seals tighter.

Can I store cigars in a wine fridge?

Yes, but with caution. Wine fridges run cooler than the 65 to 70 degree window cigars like. They also tend to run dry. If you use one, drop in Boveda packs at 72 percent and accept that the cigars will burn slightly slower than usual.

Keep reading

Written from the counter.

Read a few of these, then stop in. We will walk you through the walk-in humidor and answer the rest in person.

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