This is why. This is at my friend's coffee shop in Muzha, Wenshan District (木柵文山區). Black coffee, beans from Sumatra. This is the second half of the process; the first half was laying out the equipment and heating the water to the correct temperature (using the spirit burner and a long glass thermometer). Pardon the poor white balance and occasional lighting blemishes (slightly over exposed too; this would never pass muster in the photography forum).