The grit is the sugar and the rough ground beans, both of which are left rough in the mix. The beans are stone ground once, the sugar added, and they are ground again. They are not filtered or processed other then temporing.

Many websites believe it's just the Taza brand being sold under Trader Joes brand. Taza also has an 87% one, and a few other types.

I think it was Saint Lucia where you could buy fresh chocolate logs that were just ground for a buck. Spectacular flavor, but a bit gritty too.