Agglomerate is the correct term indeed. The problem is that the term also includes fines agglomerated into a clump. There is little reason for those to extract.aecletec wrote:The stickiness and distribution of fines in grinder research has been called agglomeration; for this reason I think the stirring/whisking process works well for brewing. I've found straight WDT to not be as useful as whisking then shaking side-to-side to level.
Navigate refers to specific type of agglomerates that consist of a boulder that has a puff powder coating of fines. (I called them puffs - doublehelix - fractals). The first I encountered this concept was in the Brita Folmer book.
I always assumed WDT was a catch all phrase that described a process of getting fractal-like uniformity in a puck. Shaken or stirred or whisked. I may be wrong on that, but it matters little. If your grinder stratifies or segregates fines - you'll need a WDT style tool to homogenize it.
A last point on the subject - another hypothesis I raised for the differences incorporating or removing fines is effective dose.
If fines overextract while boulders underextract, removing fines would suggest that the dose actually increased (albeit the weight decreased, the leftover mass underextracts!). Hence instead of adding more boulder to compensate - one would need to remove boulder to keep EBF.
This dichotomy between dose and extraction would suggest that there is an effective dose - that is the coffee that is available to extraction. Obviously playing with fines reflects heavily on the coffee available for extraction.