Relative humidity

Relative humidity is a measurement used to determine the amount of water vapour present in the air. It is expressed as a percentage (%) and indicates the ratio between the humidity actually present and the maximum amount of humidity the air could contain at the same temperature. This measurement is widely used in agriculture, storage, hemp cultivation and many other technical fields.

What is relative humidity?

Relative humidity is used to assess the moisture level in the air. A level of 50%, for example, means that the air contains half the maximum amount of water vapour it could theoretically hold at that temperature. This value constantly varies depending on environmental conditions.

How is relative humidity measured?

Relative humidity is generally measured using a hygrometer. These devices are used in growing spaces, greenhouses, warehouses, storage areas and many environments where controlling climatic conditions is important.

Why is relative humidity important?

Air humidity influences many natural processes. It can affect plant development, the drying of plant materials, product storage and the comfort of storage areas. Humidity that is too high or too low can alter storage or growing conditions.

Relative humidity in hemp cultivation

In hemp cultivation, relative humidity is a parameter that is frequently monitored. Growers often track its development during germination, vegetative growth, flowering, drying and storage. The desired values may vary depending on the stages of the growing cycle and the grower’s objectives.

Relative humidity and storage

After harvesting, relative humidity remains an important factor in preserving flowers, resins and other hemp-derived products. Many growers use humidity-control systems to maintain stable storage conditions suited to their products.

An essential measurement in the hemp sector

Relative humidity is one of the environmental parameters most closely monitored in the hemp sector. It plays a role at different stages of production, processing and storage, making it a fundamental concept for understanding the conditions in which plants and the products derived from them develop and are kept.