If you want a pleasing smoke, with just the right amount of vanilla, try Boswells Christmas Cookie
If one has the opportunity a most excellent way is to blow steam through it, first removing the mouthpiece
I am sure you will be amazed at its prevalence
Then, the product is collected, filtered, and subjected to acidification, neutralization, and then to evaporation, after which the crude extract is obtained
Fourthly, the conclusions arrived at by some investigators, are based on experiments made on animals, and it appears quite open to criticism, and is in fact disproved by common experience, that such results will follow when applied to man