answer:Surely, the makes of the coffee pot thought this out before placing it for sale on the market. To be safe, we clean our coffee maker once a week with water and vinegar. Our pot does not hold water as yours, but if you have not been harmed by this coffee maker’s water procedure, I would not worry about it. In the past, we owned a coffee maker that was attached to our water system. Like yours, it would hold hot water at the standby, just so a hot cup of coffee could be made within a few minutes. We suffered no ill effects from owning that coffemaker for 6 years.