Yeah, the temp sure sounds too low to me. Cooling tunnels, at least for cocoa butter, is normally set at 13 C (55 F).
Try this: instead of sending them through the cooling tunnel, stick 'em onto a sheet pan, put them in a speed rack, and into a corner out of reach of the fans and air conditioners.
Alternatively, it they already on a conveyer belt, turn off the cooling unit in the cooling tunnel (if possible) and/or take off the lid. |