Speaking of yeasties and see-through fermenters, etc.
I was again reading through Brew Like A Monk, the other day and came across where they point out that many Belgian brewers emphasize that the size and shape of the fermenter is important. That the fermenter should be, say, only half as tall as its width. This seems to be in contrast to what many homebrewers use, e.g., carboys, buckets, etc.
I had never thought of this before in relation to the Mr Beer fermenter that I started out with many years ago; it (MrB fermenter) is, in fact, half the height as it is long. It is doubtful that that is what MrB had in mind when it was designed that way, and it is likely that way because they wanted it to resemble a beer keg/barrel on its side.
The Belgians idea of this is that the wort should have a greater surface area than it is deep.
Who knows?