Hi, new member here! I had a question about cleaning recorders and was looking for some advice. I started working in a primary school in November and have been teaching recorder to Year 2 + 3. In the first lesson, the class teacher gave me a box of recorders which had been untouched for a while but have been used in the past + it was unclear if they'd been cleaned since. She said to use them for the first lesson as they hadn't been used recently (not ideal but it was the only choice in the moment and was what she decided) and the school would clean them afterwards. Since then, I've cleaned all the mouthpieces with wet wipes, and make sure that the children either use the recorder they used before or have a freshly cleaned (by wet wipe) one. However, I have a feeling they still haven't been properly cleaned yet and this is something I'd like to do for hygiene reasons. I was wondering how exactly I need to go about this: do I sterilise them or just wash them? Soak them in soapy water or some kind of sterilising solution? They're plastic and separate into pieces. Any advice would be greatly appreciated! Also, is it okay to quickly clean the mouthpiece with a wet wipe between classes? I teach each year group separately and there aren't quite enough recorders for both classes, so some recorders used in the first lesson are quickly cleaned and then used in the second lesson (once they've dried). Best-case scenario would be each child having their own recorder but we don't currently have the resources so is this okay for now or should I look into trying to get more recorders? Finally, one more question. Since returning after Christmas break, it seems more recorders are squeaking/not playing properly even when the children are doing the right technique. Is it possible they got too cold or gathered condensation or something being kept in a cold school over the holidays? And if so, is this something I can fix? Before the break there was only one that didn't work, but last lesson I had to clean + replace at least 6 recorders due to them consistently not playing properly. I'm going to test them all out so I can see just how many aren't working and keep the worse quality recorders separate to avoid wasting time cleaning during lessons, but as I mentioned we don't have many recorders so it'd be great if anyone has any suggestions as to what might be wrong and how to get them working again! I didn't mean for this to be so long (sorry!) but if anyone has any advice or answers I'd really appreciate it!