Temperature of water DOES matter when you wash you face! Some people say that washing your face with hot water opens up the pores while cold water clogs them, but that’s just a myth! So if you think that you’re doing any good by washing your face with hot water, then you’re totally wrong! Hot water can irritate the delicate skin of your face and make it dry and brittle by washing off the protective oils which are naturally produced by the sebaceous glands. That is why it is recommended that you use cold or lukewarm water to wash your face!