Why should you wash woollen garments in cold water?

Woollen garments should be washed in cold water to prevent shrinkage and damage to the fibers. Hot water can cause the wool to felt, leading to a loss of shape and texture. Cold water is gentler and helps maintain the integrity and softness of the wool, ensuring that the garment lasts longer. Additionally, using cold water is more energy-efficient, making it an eco-friendly choice.