Good chocolate contains a specific crystalline structure. Tempering is used, similarly to blacksmiths tempering metal, to encourage the formation such a structure.
Adapted from: Science of tempering chocolate.
Phase VI does not nucleate fast and can be safely ignored.
Phase V forms below 35C.
Phase IV forms below 30C.
- Dice up chocolate, set a 1/3rd aside for seed.
- Melt chocolate at 45C. Using a bowl over cooking water.
- Cool to 27C.
- Insert seed crystal chocolate.
- Heat to 31C.