Tobacco leaves are highly moist up until they are harvested, then depending on their type and the final use, the ERH can vary quite significantly, so measurement and control is a significant factor in processing environments and the product quality.

Customer applications
Tabacuba & Xuchang Tobacco Factory: Precise measurement equipment for best qaulity tobacco

General applications

ERH is a key factor in quality (Cigars especially), hence the use of humidors in the storage of the best quality products. Handrolling tobacco is usually has a high ERH value, taylor mades - medium ERH. Handheld insertion type instruments are used in bulk checks, water activity units tend to be used in the laboratory environment. 
Water Activity

Drying process to produce correct ERH levels.


Tobacco products are often shipped long distance, transportation conditions can be a key factor in end user acceptance.