by Sir_Darc » Mon Oct 24, 2011 2:24 pm
ABS plastic melts at about 105 Deg C / 221 Deg F, so boiling water does soften the plastic. If the water's only hot to the touch, but not too hot that it burns, (Around 38 Deg C, 100 Deg F) it shouldn't cause any harm. I don't think soap matters in this instance, it's all about the temperature.
- Jubal