Chocolate seized during dipping, how to prevent it?

Chocolate seized during dipping, how to prevent it? - Churros with Chocolate and Dulce de leche Dips

I used a double boiler (two pots) to melt chocolate for truffles but half way into dipping the truffles in the chocolate, the chocolate hardened and became very clumpy.

How do I keep the melted chocolate from hardening?



Best Answer

There are two things to keep in mind while melting chocolate:

Keep a low uniform heat

I start off the melting process with low to medium heat. Once the chocolate fully melts, I reduce the heat to low and keep gently stirring all the while.

If you allow the chocolate to cool, it separates out into non-uniform areas of heat, and the cooler pockets start crystallizing. This causes lumps or spikes to form. However, if you go too high, the chocolate may burn.

Keep the chocolate absolutely dry

This also includes steam and condensation from the boiler. The water in the boiler should not splash over or steam into the chocolate. Also make sure that the dipped materials (truffles in your case) are totally dry.

Presence of water causes rapid cooling of parts of the chocolate, which again causes lumps to form. It also causes sugar to crystallize out of the fine chocolate mix. This is called "seizing", and such chocolate is very brittle and difficult to melt.


EDIT:
Here's a nicely written article on the different methods of melting chocolate: How to Melt Chocolate for Dipping



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Quick Answer about "Chocolate seized during dipping, how to prevent it?"

This may seem counterintuitive, but the way to fix chocolate that has seized is to add more liquid to it. Adding the right amount of water (or other liquid) will dissolve the sugar and cocoa in the clumps and make it a fluid consistency again.



Super Quick Video Tips: How to Fix Seized Chocolate




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Gustavo Peres, Karolina Grabowska, Karolina Grabowska, Karolina Grabowska