I'm just wondering how often do you replace your kids drink bottles.....not the milk ones, but the general ones for water (smash brand etc)
DS has about 6 drink bottles that we rotate (his school drink bottles are separate). I was washing one up tonight and by chance I caught one in the sunshine, and it had scum on the inside at the bottom
I always use those bottle cleaner things, but it looks like this one didn't get scrubbed properly.
But in saying that, do these drink bottles have a life span or use by date?
I only buy the Smash brand, but sad that I've had to throw it away