mycuppa wrote:
Thanks Nic. I still believe that sometimes too much theory runs the way we do things. In theory, post-blending should at least deliver something special if the sum of the ingredients were all executed perfectly. Being a scientific soul, I could not let go of the theory of post-blending for so long. I actually drove myself into the ground trying to chase some sense of the perfect holy grail. Lessons learned are............on commercial roasters I think you can achieve great results pre-blending, in fact I think there are some interesting benefits or advantages in pre-blending for some scenarios. Exactly how this translates in a practical sense for non-commercial roasters is the interesting question (or dilemma) for me.......and sadly it's something that I could not possibly answer at this stage and guess it may apply to many facets of roasting - commercial versus domestic, some things being the same, some different. Interested to hear more about pre and post blending........but the results need to be carefully controlled.
Well, I have to say that the "KJM Blend" :🙂 is pre-blended in the KJM household. I did try post-blending it. That's how I developed it. Did quite a few batches post-blend, and then (due to the need to roast a small amount in a short period of time) I thought "what the heck.." and pre-blended a "single" batch (rather than 4 full batches and a whole 1kg of beans....). The pre-blend is different. I don't quite understand how this happens - there are harder beans in the mix, the roast level is pretty even (how does that work??!?!?) - but in the cup - it is preferred by all my victims.. It is strange, and I don't presume to begin to understand why. The separate roasts I've done have all taken the beans to the same visual and timed roast level as the pre-blend batches, but they taste different.. I'm at a loss as to how to more carefully control the process to get more scientific results, but I've come to accept that it just works the way I do it, and I've kind of given up trying to get to the bottom of it because I've got better things to do! Cheers /Kevin