So, how hot does water need to be to kill germs? It depends on your mission. For washing dishes or hands: hot enough that it feels good, but let soap do the heavy lifting. For sanitizing baby gear or canning: get it boiling. For your sponge? Just throw it in the microwave for a minute—no longer—or buy a new one. Your pride will heal.
And if you ever feel guilty for using warm water that’s not scorching hot, remember this: you’re not a laboratory. You’re a person with limited time and a fear of burning yourself. So lather up, scrub with gusto, and let the hot water be your assistant, not your executioner. Your hands will thank you, and so will your sense of humor.
