You wI’ll get a lot of advice to just smoke it. Thats actually the common mantra here on this site. However, if you prefer to follow the historical and time tested method used by millions of smokers historically - lightly pack your pipe 1/3 full and smoke it several times that way. Then, do the same but filling it 2/3 full. Afterwards smoke it with a full bowl. There is a tendency amongst people to follow the crowd - while at the same time trying to convince themselves that they are doing just the opposite. Over the course of 40 years and hundreds of new pipes, I have had issues with three new pipes all developing divots in the chambers after 5-10 smokes. Generally, I just load a new pipe and smoke it and 98% of the time that worked. After the 3rd incident (may have been sand pits in the chamber, who knows) I went pack to the 1/3, 2/3, full load smoke method. There have been no further incidents. Now mind you, all three pipes that burned out were subject to being smoked by strong winds during break in. However, had they developed a proper cake for protection, I am left wondering would they have developed burn pits in the chamber to begin with? You decide.