Crystal clear water can be adjusted with perfect precision and prepared for a room-full of people in less than a minute, using the OXO Brew Adjustable Temperature Kettle. Heat water to a fixed degree within the range of 170 and 212 and maintain temperatures without any further action for 30 minutes. The OXO Brew Adjustable Temp Kettle is made using BPA-free borosilicate glass, bringing all the best features for freshness together to create your cleanest and brightest cup yet.