Ask Mar­i­lyn

Chattanooga Times Free Press - Parade - - PARADE PICKS - By Mar­i­lyn vos Sa­vant Send ques­tions to mar­i­lyn @ pa­

When wash­ing your hands with soap and wa­ter, does it make a dif­fer­ence whether you use hot or warm wa­ter ver­sus cold wa­ter? —Den­nis Bre­unig, Prairie du Sac, Wis.

Most of the time, no. When you wash your hands, you’re just me­chan­i­cally re­mov­ing soil and germs, etc. No mat­ter how hot the wa­ter is, you’re not killing them. (You’d need boil­ing wa­ter to do that!) But if your hands are greasy, warm wa­ter will do a bet­ter job.

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