Tonight I tried a cold-brew that I steeped for 24 hours. It was made from a bunch of mostly failed Yirgacheffe test batches, some Guatemalan I got from Whole Foods I didn't care for, some old Tanzanian peaberry I roasted, and finally some random bag I had in the shelf that had been sitting. I've decided that one of the best ways to get rid of my extra inventory is to make a cold-brew out of it and the results are usually surprisingly good.
Tasting it hot without sugar or cream, it tasted rather flat with a light floral note at the end. When I added sugar and milk, it tasted relatively plain with a little bit more of the coffee and floral taste.
After up-dosing it and adding more sugar, and subsequently letting it cool, it tasted like a mouthful of flowers that ended with a milk chocolate flavor. While when I normally read descriptions like this, I tend to think the writer to be exaggerating (AKA full of crap), it really did taste this to me. Before anyone uses my typical assessment against me, I have other people who agreed with the weirdness of this coffee. After more sips and digging through my memories for a familiar flavor, I landed on rose-water. It really tasted like coffee, then a strong rose water flavor, and then chocolate.
In conclusion, coffee is weird and I don't understand it.