Never combine the cold milk with warm breast milk
, so each time you will have to store one bottle (or the breast milk
bags are good too)....once the milk is cold you can combine them. Whoa...off track, sorry! After I put the milk away I would wash the plastic nipple attachments and the other bottle. I used hot soapy water, then just set out to dry. At the end of the day you can steam everything. The tubing I would steam once a week, as no milk ever gets into that part.