hidegvíz

Hidegvíz refers to water that is significantly cooler than ambient temperature, typically below 20 degrees Celsius (68 degrees Fahrenheit). The perception of "cold" is subjective and can vary based on individual tolerance, environmental conditions, and the intended use of the water. In many contexts, particularly in Europe, "hidegvíz" is used to denote the colder tap water supply in a two-tap system, with "melegvíz" representing the hotter supply.

The properties of cold water are distinct from those of warmer water. For instance, cold water dissolves substances more slowly and has a higher density. Its use spans various applications, from drinking and cooking to industrial processes and recreational activities like swimming. In some traditional practices, cold water immersion is employed for its perceived health benefits, such as stimulating circulation and reducing inflammation.

The availability of hidegvíz is dependent on a region's water infrastructure and climate. In colder climates, the natural temperature of water sources can be significantly low for much of the year, making the distinction between cold and hot water a matter of heating rather than simple availability. The energy required to heat water is a significant factor in household utility costs, making the use of cold water often more economical.