Do you wash (hot soapy water) your child's sippy cup every day? Do you sterilize it from time to time?
I'm thinking I'm doing something bad/unhealthy because we only wash DS's sippy 2-3 times a week. For the most part, he only has water in it...only sometimes some diluted juice. We're in the habit of just sticking it in the fridge in the evening and then getting it out the next day when we need it again...without washing in between. I've noticed, though, some dark spots (mildew?) on some of the interior pieces (we use a Born Free cup) that are appearing after a day or two. So, this seems to point to "wash very thoroughly every day." Is this what y'all do?
I'm thinking I'm doing something bad/unhealthy because we only wash DS's sippy 2-3 times a week. For the most part, he only has water in it...only sometimes some diluted juice. We're in the habit of just sticking it in the fridge in the evening and then getting it out the next day when we need it again...without washing in between. I've noticed, though, some dark spots (mildew?) on some of the interior pieces (we use a Born Free cup) that are appearing after a day or two. So, this seems to point to "wash very thoroughly every day." Is this what y'all do?







I wash out with hot soapy water daily and put the main 'cup' part in the dishwasher every couple of days. We have the 'straw' kind and they drive me NUTS. They straws are SO hard to get clean, I notice black stuff in them which worries me. I end up using a q-tip to try and clean them. He has his morning milk in his sippy which i think is the culprit for the black nastiness

Since then I've been a little obsessive about getting the cup out of her hands and into the sink as soon as she is done. I just wash them in the sink but I take a nipple brush to the mouth piece to get it clean.
Our sippy cups never get anything but water in them so it isn't that big of a deal.