>>2505113It sounds like it's moisture related. I have used nording keystones at the bottom of my pipes ever since I started smoking and I never experienced irritation or tongue bite. Along with sucking up some extra moisture they create a nice little void in the bottom of your bowl and it is easier to completely smoke your tobacco down to ash. No dottle. They also protect the bottom of the bowl from getting too hot as well. I use them in all of my pipes, even cobs so I don't scorch the bottoms. Also, I clean and reuse them. I usually get 3 to 4 smokes from a stone. I throw them away once they are all black. Worth a try. A big bag is $10 from most places. I've been on the same bag for 2 years. I probably average about 5 bowls a week to give you an idea.
