the express sanitize cycle is the only cycle which attempts to use sanitize water temp. And given what Eugene says above, combined with the fact you cannot increase soil level on that cycle to lengthen wash time to give more time for water heating, I don't like this machine. I like the Frigilux version better because there's a regular Sanitize cycle as well as an Allergen cycle, neither of which are on the Kenmore version. Sears offers numersous deliciate cycles instead.