The number represents the maximum temperature, in Celsius. For example, a 30 means that the garment should be washed with cold water that is at or below 30°C (or 86°F, which is the cold setting on most machines).

Is 30C warm or cold?

The more dots on the tag, the hotter the water should be—one dot represents cold, or 30 degrees Celsius; two dots for warm, or 40 degrees; three dots for hot, or 50 degrees; and four dots for extra hot, or 60 degrees.

Is 30 degree water hot?

In general, hot water is 130 F (54.4 C) or above. Warm water is between 110 and 90 F (43.3 to 32.2 C). Cold water is generally between 80 and 60 F (26.7 to 15 C). If cold water is below 60 F (15 C), clothes are unlikely to be cleaned very well.