Why does chocolate overcrystalize
Posted in:
Tech Help, Tips, Tricks, & Techniques
I am adding a question to this older topic as it is more or less the subject of my latest chocolate issue.
I have been using Felchlin Maracaibo for dark and Valrhona Opalys for white. During the winter both behaved fine. For my Easter 2014 batch of chocolates, I was able to prepare several molds with the Opalys when it thickened up to the extent that there was barely any space for the ganache in some of the cavities. I raised the heat several degrees, and that did not appreciably help. This job was done at the beginning of April, not particularly warm or humid. A few days ago, the same thing happened with Maracaibo, and raising the temp even above 90F did not help. It wasn't quite as thick as the Valrhona had been, but for a dark chocolate, it was really viscous. This time we were experiencing some warm, humid weather--though I was running the AC to try to prevent the thickening.
On another forum a chocolatier from Richmond, Va. (about 100 miles from me) wrote that she had experienced a similar thickening of chocolate on the same day and attributed it to the humidity. She mentioned adding some cocoa butter.
So today, aware of the possibility of humidity, I turned up the AC full blast. I added cocoa butter to the Opalys, and it was perfect. My recently ordered hygrometer arrived, and revealed the humidity to be around 20-25%. So I'm thinking I may have found the issue. The problem is that it is not consistent (the first thickening of Opalys was not on a humid day). Tomorrow I'll be using Maracaibo and will try the same routine to see if it helps. I won't add cocoa butter, however, unless it turns out to be necessary.
My question relates to the humidity issue: Assuming that is the problem, is the chocolate I used on the humid days permanently "humidified" or will it return to its previous state once it is out of the humidity? I don't want to have to add cocoa butter to the chocolate from now on, nor do I wish to discard the chocolate.
Incidentally I was tempering the chocolate in a Chocovision machine. Someone at that company recommended raising the working temp for the Valrhona to the 90F range, but that seemed a bit high to me (Valrhona recommends 84F).
Thanks for any guidance.