Hello,
So still fairly new to roasting nuts, I was brought a few macadamia nuts that have been roasted and show different colors of brown within the nut. It can be all white with a brown spot, or you can see layers of different browns. The smell is a little different and there are no discoloration when they are raw. Only a handful of the nuts are affected but my question is what causes it? I googled with no luck. If they were burnt or over roasted more would be this way. We also stir the nuts while roasting and it is a dry roast.