Pre Grinders and particle size
Posted in: Tech Help, Tips, Tricks, Techniques
My refiners are like MacIntyre's - a horizontal drum with blades that rotate and scrape the inside of the drum.
For the most part, all of the nibs are ground, however there is a 4 inch guillotine spout at the bottom where nibs get trapped during refining. When my staff open thespout to drain the chocolate, the nibs that got trapped in there when they were first poured into the machine are washed out. This can be mitigated by my staff stopping the machine and pouring out a small amount of chocolate into a bucket and dumping it back in to the top. However sometimes they don't have the time. In one recent case, a small stone even made it through, so you can see how important it can be to strain it.
With the cocoa-town grinders, nibs and sugar stick to the insides of the wheels, the support structure for the wheels, and so forth, and never get ground. Then when the machine is emptied and scraped out, they get cleaned out and into the chocolate.
Hope that helps.
