Solving detergent powder in a solution I used a detergent powder mixed with water to clean my espresso machine. Some micro particles of powder are stuck into machine's inner tank. So when I pull the hot water out of the machine's nozzle, it contains micro powders and it tastes powdery.
What solution can I use instead of water to wash out all those sticky powders?
A harmless solution to break bond between powders and solve the powder into itself.
I think using acetone will be helpful. Acetone will evaporate fastly and it is polar and can form hydrogen bonds to the detergent powder like water. Though you need to use much acetone to wash all detergent powders and after that, wait for some minutes for acetone to vaporize from your machine.