Proper Cigar Storage and The 135 Rule

5 Mar 2025

The "135 rule" for cigar storage suggests that the sum of your humidor's temperature (in Fahrenheit) and relative humidity (RH) should ideally equal 135, helping to maintain optimal conditions for your cigars.

Here's a breakdown of the "135 rule":

• The Concept:

  The 135 rule is an improvement over the 70/70 rule, which suggests 70°F and 70% RH. It allows for flexibility in humidity preferences while ensuring cigars are stored in a way that balances temperature and moisture.
  

• How it Works:

  You can adjust your humidity (ideally between 63-72%) and match the temperature to a number that will come close to totaling 135.
  

• Example:

  If you want to keep your cigars at 65% RH, you can aim for a temperature of 70°F (65 + 70 = 135).
  

• Why it's Important:

  Maintaining the right balance of temperature and humidity is crucial for preventing cigars from drying out, becoming too moist, or attracting pests like tobacco beetles.
  

• Other Considerations:

  • While the 135 rule offers flexibility, it's important to keep cigars between 63-72% RH.

  • Temperatures above 75°F (24°C) can be problematic and increase the risk of tobacco beetles.

  • The ideal humidity for cigars can vary depending on the type of tobacco, the climate, and personal preference.

  • It's recommended to use a hygrometer to monitor humidity levels in your humidor.