Thank you for the replies. I do have the 800 watt bluetooth model. I guess I will have to look into upgrading to the wifi version eventually and/or investing in an insulated vessel.
An app update would be great! Maybe, in the meantime, I could find an IFTTT script to trigger the wifi version to activate at a specific time.
I have tried boiling a kettle of water and dumping it in and it did does reduce the time.