Posted in: Tech Help, Tips, Tricks, & Techniques
Always test your chocolate for temper. Place a little on the back of a spoon or on a piece of wax paper. It should set in a few minutes and have a nice snap. If not, then it has not been tempered.
A room temperature of 72 F is on the high side for me. I prefer 68 F and I always have a fan blowing over my chocolate molds. I learned the hard way that tempered chocolate will produce bars just like your photos if the room temperature is too high.
I also use a double boiler to heat my dark chocolate to 120 F and then cool it in a 65 to 68 F water bath to 80 F, then back on the boiler to bring the temperature back up to 89/90 F. I am always stiring and allow some time at each temperature. One must take care if using a water bath as water in chocolate is bad.
I hope this helps.