OK, so here's my waste of time. I was also doing this highly scientific exploration under the "dread" of scorn of SWMBO!
Here's me, engaged in the data generation stage of the process:
And here's the balsa as it came out of the pipe, after a bowl of GH Brown Flake Licorice:
An unused Savinelli balsa bit on the left, the used on the right:
Use balsa:
Cross section: Used balsa:
Cross section: Unused balsa on the left, used on the right:
Cross section: Closer view of the used balsa:
End views: Bowl end on the left, stem end on the right:
Observations while smoking:
-No gurgle, despite the temperature hovering just above freezing.
-Flavor reduced a bit, but not to an objectionable level.
-Reduced impression of nicotine.
Observations of the used balsa bit:
-Wet, almost to the core.
-Visibly darker and yellow, more pronounced on the outside.
-Pores in the balsa cross section are significantly darker. Perhaps smoke passes through these pores?
Conclusions:
The
Savinelli Balsa System Natural Absorbent Insert functions primarily to absorb moisture, and does an excellent job of it. Along with the moisture, some components of smoke also get absorbed into the balsa through the exterior. Pores in the balsa also appear to channel smoke and to absorb moisture and components of smoke. The composition of these components is unknown.
It would appear that there may be some filtering going on in the pores/channels of the balsa, but the vast majority of moisture and smoke component removal is occurring through absorption, not filtration.
So I'm tentatively backing off on my assertion that the balsa doesn't filter, but sticking with my claim that the balsa primarily works like a sponge.
This was fun!