Degree of Hardness

The degree of hardness indicates how much dissolved lime (especially calcium and magnesium carbonate) is contained in the water. It is measured in degrees of German hardness (°dH) or millimoles per liter (mmol/L). The higher the degree of hardness, the higher the lime content in the water.

The degree of hardness of drinking water varies depending on the town and region. In Germany, water hardness is measured in German degrees of hardness (°dH).

In general, water with a hardness level below 7°dH is considered soft water, while water with a hardness level above 14°dH is considered hard water. Water with a degree of hardness between 7-14°dH is considered medium-hard water.

However, there are also towns and regions where the hardness of the water can be very high or low. For example, some localities have a hardness level of over 20°dH, while other localities only have a hardness level of less than 3°dH.

It is important to note that this is general information only and it is advisable to check the water hardness of your area of residence to ensure you are taking the right appliance care and health measures.