DIY Cigar Humidor

Use a plastic storage container as your humidor. These containers are air-tight, helping to maintain the freshness and humidity within the humidor. Choose a container large enough to hold the appropriate number of cigar boxes, and make sure the humidifier fits.

Test the air-tight seal of your chosen container. Place the lid on the container and press down, listening for escaping air as you press. You should not hear any air escaping if the seal is tight; if it is not, choose another container until you find one that is air-tight.

Place wooden cigar boxes inside the plastic container to hold your cigars. The wooden boxes will hold moisture, helping to maintain the humidity within the humidor. These boxes will also prevent the cigars from touching the humidifier or the plastic; direct contact with either of these surfaces can change the moisture levels in the cigars.

Install a small humidifier into the humidor to maintain the humidity. There are a variety of humidifier products on the market; most require distilled water and propylene glycol to function properly. Follow all product instructions when filling and installing to ensure a proper humidity level.

Seal the container without the cigars for one to two days to allow the humidifier to bring the humidity to a steady 70 percent. Some humidifiers come with barometers to track the humidity; you can also install your own to keep track.

Place the cigars in the humidor once the humidity is stable. Seal the container and keep it closed unless you intend to smoke a cigar or need to check on the humidifier. Open the box as little as possible so that the moisture level does not change.