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Keeping Cigars in Safe Conditions – Wireless Humidor Hygrometer

If you are looking for a place to store quality cigars, humidor is the best solution for you. But, even humidors are not always perfect. Get yourself a wireless humidor hygrometer and be aware of the conditions inside your humidor at all times.

There are numerous different humidor hygrometers on the market. By far, the best option for this purpose is a smart hygrometer. By smart, I mean a hygrometer that works wirelessly with your smartphone, shows you graphs of data, measures other important environmental factors simultaneously and alerts you when things change unfavourably. We definitely think that the best wireless hygrometer is the RuuviTag, a Finnish engineering masterpiece.

Storing cigars is smart financially. Good cigars are expensive. And if you let one of your more expensive cigars sit in an improper environment, all the money spent on that cigar will be thrown away. Investing in a good hygrometer is a smart investment.

If you are interested, here is a list of the most expensive cigars in the world. A quick spoiler, the most expensive cigars might have more than six numbers in their price :).

Small, red humidor on a table. On the window, you can see the RuuviTag hygrometer measuring the humidity inside the humidor.
Open RuuviTag inside a humidor. RuuviTag works as a wireless humidor hygrometer.

What is a humidor?

A humidor is a specialized container used for storing and preserving cigars and other tobacco products. It’s designed to maintain a constant level of humidity, which helps to prevent the tobacco from drying out and losing its flavor.

Humidors come in a variety of shapes and sizes, from small desktop models to large cabinet-style units. They are typically made from wood, which is an ideal material for maintaining a stable humidity level.

To use a humidor, you first need to add a humidifying element, such as a sponge or gel pack, which will help to regulate the humidity inside the container. Once the humidor is properly seasoned and the humidity level is stable, you can store your cigars inside.

There are many benefits to using a humidor for cigar storage. Not only does it help to preserve the flavor and aroma of the tobacco, but it also helps to prevent the growth of mold and bacteria. In addition, a properly maintained humidor can add value to your cigar collection over time.

If you’re a cigar enthusiast or collector, investing in a high-quality humidor is essential. With the right care and maintenance, your humidor can provide years of reliable storage for your cigars, ensuring that they remain in perfect condition for your enjoyment.

What should the humidity be in a humidor?

The relative humidity inside a humidor should be 70%. Some experts say that the humidity should be a little lower, some say that it should be a little higher. In most cases, however, 70% of relative humidity should be a good level to aim for.

Try to keep the humidity as stable as possible. Big swings in the air humidity can cause problems in cigars. They can become soggy and soft or they can dry out.

Ventilation is a must in a humidor

A humidor should not be an airtight environment. If air does not circulate in a humidor, mould can start to grow. Approximately 25% of the humidors inside the room should be left unused. With empty space, the air will circulate more easily.

old cigar on top of a humidor
A proper humidor is a key investment if you are storing valuable cigars. Photo by: Spring Fed Images

Effects of High Humidity in Your Humidor: What to Look Out For

When the humidity inside your humidor gets too high, it can lead to a variety of problems that can damage your cigars. Excess humidity can cause the cigar wrapper to expand and become spongy, which can ruin the flavor and aroma of your cigars. Additionally, high humidity can lead to mold growth on your cigars and inside your humidor, which can be harmful to your health if you inhale it.

To prevent these issues, it’s important to monitor the humidity levels inside your humidor regularly. If you find that the humidity is too high, there are several steps you can take to bring it back down to the ideal humidity of 70%. These include removing any excess water or moisture sources from the humidor, increasing the ventilation, and using silica gel packs or other humidity control devices to absorb excess moisture. By taking these steps, you can ensure that your cigars stay fresh, flavorful, and safe to smoke.

Maintaining Proper Temperature in Your Humidor: Tips and Best Practices

Temperature is another critical factor to consider when storing cigars in a humidor. Ideally, the temperature inside a humidor should be kept between 65-70°F (18-21°C) to prevent any damage to the cigars. High temperatures can cause the oils in the cigars to evaporate, which can lead to a loss of flavor and aroma.

Additionally, high temperatures can encourage the growth of mold and bacteria, which can ruin your cigars. On the other hand, low temperatures can cause the cigars to dry out, making them brittle and unpleasant to smoke. It’s essential to monitor the temperature inside your humidor regularly and ensure it stays within the ideal range to keep your cigars in perfect condition.

Tips for temperature control for humidor

  1. Avoid placing your humidor in direct sunlight or near a heat source, such as a radiator or oven, as this can cause the temperature to rise too high.
  1. Use a digital thermometer or hygrometer to monitor the temperature inside your humidor regularly.
  1. If you notice that the temperature is consistently too high, consider moving your humidor to a cooler location, such as a basement or air-conditioned room.
  1. If you live in a hot climate, you may need to use a cooling device, such as a small fan or air conditioning unit, to help regulate the temperature inside your humidor.

By following these tips, you can ensure that your humidor maintains a consistent temperature and your cigars remain in optimal condition.

If you live in an area where Fahrenheit is used, you can try to follow the 70/70 rule. This means that the air humidity and temperature should both be at 70. Temperature should be 70 ॰F and humidity 70% of relative humidity.

Analog hygrometer attached to the humidor. Hygrometer is showing 60% of relative humidity.
An analog hygrometer inside a humidor. You will see in a minute how accurate this hygrometer is.

Why is a digital hygrometer better than an analog hygrometer in a humidor

Even though analog hygrometers may look cool, they are not as reliable as digital hygrometers. Furthermore, they must be calibrated more often in order to give proper readings. With a digital hygrometer, you can look at past measurements as well. With an analog hygrometer, you cannot be sure that your cigars are in an optimal environment at all times. House temperature fluctuates, which alters relative air humidity.

A digital hygrometer is a far better guardian for your cigars. In addition, wireless hygrometers give you the possibility of having the humidity reading right in your pocket. With a convenient app, you can examine the humidity levels in your humidor without needing to take a look at the box.

Larger humidors need more hygrometers

A good humidor hygrometer fits in all humidos. Small travel-sized humidors can only store a few cigars, as larger humidors can actually be entire rooms. That is why a hygrometer must be handy.

For larger humidors, relative air humidity can be different in different areas. With multiple humidor hygrometers, you can ensure that no place is too humid. If the humidifier is in one location, make sure to switch around your cigars’ places.

Screenshot from the Ruuvi mobile application. Temperature inside the humidor is 23,07 celsius degrees and humidity is 51,95% of relative humidity.
Current air humidity and temperature inside a humidor. You can notice that the humidor is too dry for proper cigar storing. (N.B. This humidor is NOT in active use.)

RuuviTag is the best digital humidor hygrometer

When it comes to monitoring the humidity levels in your humidor, a digital hygrometer can be a game-changer. And when it comes to digital hygrometers, the RuuviTag stands out from the rest. With its advanced sensors and user-friendly app, the RuuviTag provides accurate, real-time readings of the humidity levels in your humidor, helping you to maintain the ideal conditions for your cigars.

Whether you’re a seasoned cigar aficionado or just starting out, investing in a RuuviTag can make all the difference in the quality of your smoking experience.

RuuviTag is the best hygrometer for a humidor. It is compact, reliable, and accurate. With Ruuvi’s mobile application you can:

  • Set alarms if the desired temperature and humidity levels are either too low or too high
  • Examine past measurement data in a graph
  • View real-time data from all of your Ruuvi sensors simultaneously

RuuviTag measures temperature, air humidity, air pressure and the movement of the Tag. These measurements are sent via Bluetooth to nearby devices. These measurements can be read with Ruuvi’s application. 

The Ruuvi ecosystem. RuuviTags send data to Ruuvi Gateway and then the Gateway relays the data to your mobile phone and computer.

RuuviTags are the small environmental sensors in the bottom right corner. Ruuvi Gateway sends their data to the Ruuvi Cloud, where you can see it with a mobile device or a desktop.

Ruuvi Gateway enables remote monitoring for humidors

RuuviTag works with Bluetooth. And, all of us know that Bluetooth does not work when you leave your home. Even though Ruuvi’s devices Bluetooth range is superior compared to regular Bluetooth devices, it cannot be used over long distances.

That is why we have invented the Ruuvi Gateway. A gateway that makes your Ruuvi’s measurements accessible at all times. Ruuvi Gateway listens to your RuuviTags’ Bluetooth messages and transfers them to either the Ruuvi Cloud service or your own URL page. Hence, the data is accessible via the Internet wherever you go.

How to install a RuuviTag in a humidor?

Ruuvi’s devices are easy to use. This is because we think that measuring should be possible for everyone. Here is a quick tutorial on how to install the RuuviTag hygrometer inside your humidor.

  1. Remove the plastic lid from the RuuviTag to power the device. Once the lid is removed, the device will start to measure and send data.
  2. Download Ruuvi’s mobile application and follow the on screen instructions.
  3. Place the RuuviTag(s) in desired places.You should remove the lid from the device. By removing the lid, the sensors inside the device will detect changes in air humidity more quickly. The lid is there to protect the Tag from water. The device is lightweight so you can put in any place where it fits.
  4. Then, name the RuuviTags in your humidor and add a wallpaper if you so desire.
  5. Add alerts to the Tags. Relative humidity should be 65% – 72% and temperature 19 ॰C – 22 ॰C. Now, everytime RuuviTag measures a value outside of these preset thresholds, you will receive an alert.
Humidity levels inside a humidor for a day. The humidity is at 50%.
Temperature levels inside a humidor. Temperature is changing, but it is around 23 celsius degrees.

Here are the graphs of a day’s measurements. The humidity (top) is stable but too low. Temperature (bottom), on the other hand, is too high.


Cigars are expensive. Having a quality humidor hygrometer is a great investment. You can stop worrying about the conditions inside your humidor, wherever you are.

Keep the humidity at around 70% inside any humidor and the temperature at about 21 ॰C or 70 ॰F. By doing this, your cigars should stay in good shape.

Buy RuuviTag to Monitor Your Humidor
Measure your humidors’ humidity and temperature continuously and receive alarms if something goes wrong. With Finnish engineering, you really can’t go wrong.

Buy RuuviTag to Monitor Your Humidor

Measure your humidors’ humidity and temperature continuously and receive alarms if something goes wrong. With Finnish engineering, you really can’t go wrong.


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What is the correct humidity in a humidor?

Correct humidity in a humidor is approximately 70% of relative humidity.

What is the correct temperature in a humidor?

Correct temperature in a humidor is 21 ॰C or 70 ॰F.

How can I maintain my cigars’ surrounding conditions?

A good humidor and continuous humidity and temperature measuring are key to storing quality cigars.

How often should I check the humidity levels in my humidor?

You should check the humidity levels in your humidor quite often to make sure that the conditions do not worsen surprisingly. The best option is to install a smart humidor hygrometer which alerts you when the humidity levels are not at an acceptable level. RuuviTag is an example of such a smart humidor hygrometer.

What can happen if the humidity in my humidor is too high or too low?

If the humidity in your humidor is too high, it can lead to mold growth, cigar beetle infestations, and the degradation of your cigars’ flavor and aroma. On the other hand, if the humidity is too low, your cigars can dry out and become brittle, resulting in a harsh and unpleasant smoking experience.

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