I made a DFH 90min clone. It is now six weeks old and tastes like a cup of columbian coffee. Very thick and creamy texture wise and has a very distinct coffee flavor. This is obviously a batch gone wrong, but yet tases very good and has a kick like a mule! (8.8%abv) I am wondering what went wrong or what may have happened to make this flavor combo happen. I get the feeling that caramelization of some sugars is playing a big part, but can't say what else is playing a part. What ever happened it is a very interesting flavor and is in no way bad tasting, if you are a coffee lover as I am.