the most important thing is a "dry" post smoke cleaning
Did you remove the stem from the bowl before putting it in the oven?Cobsandclays Said:
Another thing I tried a few weeks ago was to warm the oven in the kitchen to about 200deg and put the pipe in there for an hour. Then I took it out and filled the bowl with activated charcoal (can be found wherever aquarium supplies are sold) then I put it back in the oven for a couple hours. That worked to absorb the nastiness that had accumulated in the bowl.