Cheryl, dericulous! gloves and 140 degrees for breastmilk! Human milk should be heated as gently as possibly, to avoid denaturing the protein antibodies and other immune components. Overheating human milk could theoretically add to the risk of HIV transmission, because the antiinfective properties that would ordinarily mitigate against transmission would be disabled. Dumb, dumb, dumb. All recommendations I have ever read called for room temp running water to heat human milk. Catherine Watson Genna, IBCLC