Tempering Chocolate for a Clean Snap
Tempering is the process of melting chocolate to specific temperatures and cooling it to form stable crystals. This produces a finish that resists melting at room temperature, pulls away cleanly from molds, and provides a sharp, audible snap when bitten.
Control the heat or start over.
Chocolate is sensitive to moisture and extreme temperatures. Work in a cool environment and keep every bowl and spatula completely dry, as even a single drop of water will cause the chocolate to seize into a grainy paste.
- Digital instant-read thermometer
- Double boiler or heat-proof glass bowl over a saucepan
- Rubber spatula
- Large marble slab or metal baking sheet for cooling
What goes in.
- 1 lbCouverture chocolate (70% cocoa solids recommended)
The power of crystal memory
By reserving a portion of unmelted chocolate and stirring it into the melted base, you introduce stable beta crystals that force the rest of the chocolate to set into the same structure.
The method.
Rough chop
Chop the chocolate into uniform, pea-sized pieces. Set aside one-third of the amount.
Melt the base
Place two-thirds of the chocolate in the bowl over simmering water. Do not let the water touch the bowl. Stir constantly until it reaches 115°F (46°C).
Cool and seed
Remove from heat and stir in the reserved unmelted chocolate. Continue stirring until the temperature drops to 82°F (28°C).
Reheat
Place the bowl back over the warm water for a few seconds only, bringing the temperature back to 88°F–90°F (31°C–32°C). This is your working window.
Test the temper
Dip the tip of a knife into the chocolate and set it aside. If it sets with a streak-free, matte finish within three minutes, it is ready.
When it doesn't go to plan.
Keep a bowl of warm water nearby to quickly reheat the mixture if it falls below 86°F during the dipping process.
Never let the chocolate exceed 120°F, or you risk burning the cocoa butter.
If the chocolate looks cloudy or streaky after setting, it was not tempered properly; you must start the melting process over.
The ones that keep coming up.
Why did my chocolate turn into a thick, gritty clump?
This is called seizing. It happens when a small amount of liquid or steam enters the chocolate. It cannot be fixed; use it for ganache or baking instead.
Does the type of chocolate change the process?
Yes. Milk and white chocolates have lower melting points and require lower final working temperatures than dark chocolate.