Introduction: Why Temper Chocolate?
Chocolate tempering is the process of precisely controlling the crystallization of cocoa butter to ensure your finished chocolate has a professional sheen, satisfying snap, smooth texture, and doesn’t bloom (develop whitish streaks or spots). Properly tempered chocolate contracts slightly during cooling, making it easy to unmold and giving it stability at room temperature.
The Science Behind Tempering
Cocoa butter can crystallize in six different forms (I-VI), but only Form V crystals produce the desirable qualities of professional chocolate:
Crystal Form | Characteristics | Melting Point |
---|---|---|
Form I | Soft, crumbly texture | 17°C (63°F) |
Form II | Soft, crumbly texture | 21°C (70°F) |
Form III | Firm but melts easily | 26°C (79°F) |
Form IV | Firm, poor snap, dull appearance | 28°C (82°F) |
Form V | Glossy, firm, good snap, melts near body temperature | 34°C (93°F) |
Form VI | Hard, brittle, takes weeks to form | 36°C (97°F) |
Tempering is about creating and preserving these Form V crystals while eliminating the others.
Essential Chocolate Tempering Temperature Charts
Dark Chocolate (50-70% cocoa solids)
- Melt completely: 45-50°C (113-122°F)
- Cool to form crystals: 27-28°C (80-82°F)
- Working temperature: 31-32°C (88-90°F)
Milk Chocolate (30-45% cocoa solids)
- Melt completely: 40-45°C (104-113°F)
- Cool to form crystals: 26-27°C (78-80°F)
- Working temperature: 29-30°C (84-86°F)
White Chocolate (20-35% cocoa butter)
- Melt completely: 40-45°C (104-113°F)
- Cool to form crystals: 24-25°C (75-77°F)
- Working temperature: 28-29°C (82-84°F)
Ruby Chocolate
- Melt completely: 40-45°C (104-113°F)
- Cool to form crystals: 26-27°C (79-80°F)
- Working temperature: 29-30°C (84-86°F)
Tempering Methods Compared
Method | Pros | Cons | Best For |
---|---|---|---|
Seeding Method | Simple, reliable, less equipment | Requires already tempered chocolate | Beginners, home use |
Tabling Method | Traditional, precise control | Labor intensive, requires marble slab | Professionals, larger batches |
Sous Vide Method | Precise temperature control, hands-off | Requires special equipment | Consistent results, medium batches |
Microwave Method | Quick, accessible | Less precise, requires attention | Small batches, casual work |
Direct Seeding | Simplest method | Can waste chocolate | Very small batches |
Mycryo Method | Clean, precise | Requires special cocoa butter powder | Professional kitchens |
Step-by-Step Tempering Methods
Classic Seeding Method
- Finely chop chocolate (reserve 1/3 for seeding)
- Melt 2/3 of chocolate in a double boiler to appropriate melting temperature
- Remove from heat and add remaining 1/3 chopped chocolate gradually
- Stir constantly until chocolate cools to crystallization temperature
- Gently reheat to working temperature if needed
- Test temper before using (see testing section below)
Tabling Method (Professional)
- Melt all chocolate to melting temperature
- Pour 2/3 of melted chocolate onto marble slab
- Spread and gather with palette knives until thickened (27-28°C/80-82°F for dark)
- Return to bowl with remaining warm chocolate
- Stir until homogeneous and at working temperature
- Test temper before using
Sous Vide Method (Precise)
- Chop chocolate finely and place in sealed bag
- Set sous vide to melting temperature and melt completely (30-45 minutes)
- Lower temperature to crystallization point and hold for 5 minutes
- Raise temperature to working temperature and hold
- Test temper before using
Microwave Method (Quick)
- Chop chocolate finely, reserving 1/3
- Microwave 2/3 chocolate in 15-30 second bursts at 50% power, stirring between bursts
- Stop microwaving when nearly melted (a few small pieces remaining)
- Add remaining chocolate while stirring to cool
- Briefly rewarm if needed (5-10 second bursts)
- Test temper before using
Testing Chocolate Temper
Visual Test
Apply a small amount of chocolate to parchment paper or the edge of a knife. It should begin to set within 3-5 minutes at room temperature and develop a uniform sheen without streaks.
Temperature Test
Use a digital thermometer to confirm the chocolate is at the correct working temperature for its type.
Snap Test
Allow a thin piece to completely set (15-30 minutes) and break it. Properly tempered chocolate will make a clean, crisp sound and break with a sharp edge.
Common Tempering Problems and Solutions
Problem | Cause | Solution |
---|---|---|
Chocolate is too thick | Temperature too low | Gently rewarm to working temperature |
Dull surface/no shine | Under-tempered or cooled too quickly | Re-temper completely |
White streaks/bloom | Fluctuating temperatures during setting | Re-temper completely |
Chocolate won’t set | Over-heated, insufficient Form V crystals | Re-temper using seeding method |
Chocolate sets too quickly | Temperature too low | Gently rewarm to working temperature |
Grainy texture | Sugar bloom from moisture exposure | Melt completely and re-temper |
Soft texture/no snap | Improper crystal formation | Re-temper with more seed chocolate |
Essential Equipment for Tempering
Must-Have Tools
- Digital thermometer (infrared or probe with 0.1°C precision)
- Double boiler or heatproof bowl and saucepan
- Flexible silicone spatulas
- Offset spatula (for dipping and spreading)
- Parchment paper or silicone mats
Professional Additions
- Marble slab (for tabling method)
- Chocolate scrapers/palette knives
- Tempering machine (for volume production)
- Heat gun (for quick surface adjustments)
- Sous vide immersion circulator
Working with Tempered Chocolate: Best Practices
Environment
- Optimal room temperature: 20-22°C (68-72°F)
- Humidity: Below 50% (avoid humid days)
- No drafts: Close windows and turn off fans
- Clean workspace: Free from water droplets and contaminants
Handling Tips
- Pre-warm molds: to slightly above room temperature
- Cool chocolate gradually: never refrigerate freshly molded chocolate
- Use thin layers: for coating and shells (approximately 2-3mm)
- Work efficiently: tempered chocolate has a limited working time
- Keep tools warm: around working temperature to prevent shock cooling
Advanced Techniques
Creating Colored Chocolate
- Use oil-based or cocoa butter-based colorants only
- Add to fully tempered white chocolate at working temperature
- Start with small amounts (1-2 drops per 100g)
- Mix thoroughly but gently to avoid incorporating air
Adding Flavors
- Use oil-based flavorings only (water-based will seize the chocolate)
- Add at working temperature after tempering is complete
- Maximum 1-2% by weight to maintain proper texture
Creating Chocolate Decorations
- Transfer sheets: Apply tempered chocolate, allow to partially set, cut shapes
- Piping: Use parchment cones with small openings for fine details
- Chocolate cigarettes/curls: Spread thinly on marble, scrape when half-set
- Chocolate fans: Spread on acetate, fold while still pliable
Storing Tempered Chocolate
- Finished pieces: 15-18°C (59-64°F), 50% humidity, away from light
- Shelf life: Dark chocolate: 12+ months, Milk/White: 8-10 months
- Avoid: Refrigeration (causes condensation), direct sunlight, strong odors
Tempering Without Specialized Equipment
If you don’t have a thermometer or specialized equipment, use these visual and tactile cues:
- Melt chocolate until completely smooth
- Test melted chocolate by placing a drop on your lower lip – it should feel hot but not burn
- Cool by adding chopped chocolate until it thickens slightly
- Test consistency by dipping the back of a spoon – chocolate should coat evenly
- Test setting by placing a small amount on parchment – it should begin to set within 3-5 minutes
- Maintain workability by keeping bowl warm (hand temperature)
Resources for Further Learning
Books
- “The Art of Chocolate” by Elaine González
- “Chocolates and Confections” by Peter Greweling
- “Chocolate Obsession” by Michael Recchiuti
Online Courses
- Ecole Chocolat Professional School of Chocolate Arts
- Callebaut Chocolate Academy online courses
- Savour Chocolate & Patisserie School online classes
Chocolate Suppliers with Technical Support
- Valrhona
- Callebaut
- Guittard
- Cacao Barry
Tempering Machines for Different Needs
- Home use: ChocoVision Revolation 2B
- Small business: ChocoVision Rev Delta
- Production: Selmi Tempering Machines
Final Tips for Perfect Tempered Chocolate
- Practice with small batches before attempting large projects
- Always start with high-quality couverture chocolate (minimum 31% cocoa butter)
- Keep detailed notes of temperatures and results for each batch
- Different chocolate brands may need slight temperature adjustments
- Prioritize temperature precision over speed, especially when learning
- Clean tools thoroughly between different chocolate types to prevent cross-contamination