How to Temper Chocolate — Glossy Snap Without a Tempering Machine

Chocolate is mostly cocoa butter — and cocoa butter forms six different crystal structures when it cools, only one of which (called Form V or beta crystals) gives the desirable shine + snap + room-temperature stability. Tempering is the process of controlling which crystals form.

You cannot tell tempered from untempered chocolate when it's melted. You can tell when it cools: tempered chocolate sets in 5-10 minutes with a glossy surface and snaps when broken. Untempered chocolate stays sticky, takes hours to set, and has a dull or streaky surface (called "bloom").

When you need to temper

• Chocolate-covered strawberries
• Truffles with a chocolate shell
• Bark / dipped candies
• Any application where the chocolate is on the outside and visible

You don't need to temper when: - Chocolate is melted into a ganache (cream cuts the crystal issue) - Chocolate is baked into cookies, cakes, brownies (heat alters everything) - Chocolate is being used as a sauce - You're making hot chocolate or hot mocha

The simplest method — seeding

Best for home cooks. Requires only a microwave and a kitchen thermometer (or careful timing).

1. Chop 12 ounces (340g) good chocolate. Use chocolate that's already tempered — like a Lindt or Valrhona block. Skip chips; they have stabilizers that interfere.
2. Set aside 1/3 (4 ounces / 113g) as your "seed".
3. Melt the other 2/3 (8 ounces / 227g) in a microwave-safe bowl. 30 seconds at 50% power, stir, repeat until almost fully melted. Stir until smooth — residual heat finishes the melt.
4. Check temperature: should be 110-115°F (43-46°C). Too hot and you'll have to start over.
5. Drop the seed (4 oz cold chocolate chunks) into the melted chocolate. Stir gently and constantly. The seed slowly melts and seeds Form V crystals into the rest.
6. Watch temperature drop. When the mixture reaches 88-90°F (31-32°C) for dark chocolate (or 86-88°F for milk/white), the chocolate is tempered.
7. Remove any unmelted seed chunks with a fork.
8. Test temper: dab a small amount on parchment paper. It should set in 5 min with shine and snap. If it sets dull or streaky, you're slightly out of temper — reheat to 95°F and add more seed.

How to maintain temper while working

Tempered chocolate cools quickly. To keep it workable for dipping/coating:

• Set the bowl over a separate bowl of warm (95-100°F) water — not hot. The bain-marie keeps the chocolate at 90°F.
• Stir every 60 seconds.
• If the chocolate starts thickening, remove from the warm water briefly and stir vigorously to redistribute heat. Don't return to high heat — overheating breaks temper.

Storage of tempered chocolate

Once cool and set, tempered chocolate keeps 6-12 months at room temperature in a cool, dry place. Avoid the fridge — humidity causes sugar bloom (a white frost on the surface). Lower than 65°F is ideal; under 70% humidity.

Common mistakes

• Overheating — past 120°F destroys all crystals, even the ones in your seed. Must start over.
• Using chocolate chips — stabilizers (lecithin, vegetable oils) interfere with crystal formation.
• Stirring too fast/aggressively — incorporates air, which then leaves bubbles in the final chocolate. Stir slowly.
• Not testing the temper — always dab a tiny amount on parchment + wait 5 min before committing to a whole batch.