How to Fix Overheated, Seized or Burnt Chocolate (and Prevent It)

Short answer: seized chocolate, the kind that turns stiff and grainy when a drop of water or steam gets in, can be loosened by stirring in boiling water one teaspoon at a time until smooth; use it afterwards as a chocolate sauce, in hot chocolate or as a drizzle, because it can no longer be relied on for baking. If chocolate went above its melting range but does not smell or taste burnt, our advice is to run it through the tempering curve on its technical sheet again. If it smells or tastes burnt, our advice is to keep it out of anything you sell. All three are prevented the same way: dry, thermostat-controlled heat and a thermometer.

Which problem do you have?

Start by naming the problem, because each one has a different fix.

Problem	What caused it	What to do	Best use afterwards
Seized: stiff, grainy clumps	Moisture: water, steam or a wet utensil	Stir in boiling water, 1 teaspoon at a time, until smooth	Chocolate sauce, hot chocolate or a drizzle
Overheated, no burnt smell or taste	Heated above the melting range on its technical sheet	Our advice: take it off the heat and run it through the tempering curve again	Back to production after re-tempering and a test
Burnt: smells or tastes scorched	Overheating	Set it aside	Our advice: not in products you sell
White or grey film after setting	That is bloom, a different problem	See our guide to chocolate bloom vs mould	–

How to fix seized chocolate

Seized chocolate is fixed with more liquid, not less: add boiling water one teaspoon at a time and stir hard after each addition until the chocolate is smooth again.

Melted chocolate is a dense suspension of sugar, cocoa and, in milk chocolate, milk particles in cocoa butter, and its moisture content is one of the factors that change how it flows. When a little water gets in, it forms a syrup with the sugar and the cocoa particles cling together into stiff, grainy clumps. Even unsweetened chocolate can seize, because its cocoa particles clump the same way.

1. Stop adding heat.
2. Add boiling water, 1 teaspoon at a time.
3. Stir vigorously after each addition until the chocolate is smooth.
4. Use the result as chocolate sauce, in hot chocolate or as a drizzle. Once diluted with water, it can no longer be relied on for baking.

Prevention: keep bowls, spatulas and moulds completely dry, and keep steam away from open chocolate. To colour chocolate, use colours made to dissolve in cocoa butter, such as Pavoni's Chocolart fat-soluble powders.

• View the Chocolart red fat-soluble powder, 40 g → $46.99 CAD

How to recover overheated chocolate

If the chocolate went above its melting range but smells and tastes normal, our advice is to take it off the heat and bring it back down through the tempering curve on its technical sheet.

Every couverture comes with its own curve. As an example, here is the one on the technical sheet of our FCH 55% Venezuela dark chocolate:

Stage	FCH 55% Venezuela (technical sheet)
Melt	45–50°C (113–122°F)
Crystallization	28–29°C (82–84°F)
Tempering (working temperature)	31–32°C (88–90°F)

Milk and white chocolates have their own curves: always use the sheet of the chocolate in your bowl.

1. Take the bowl or tank off the heat as soon as you see the temperature has passed the top of the melting range.
2. Move the chocolate to a clean, dry bowl so the hot container stops heating it.
3. Smell and taste a little. If it is scorched, stop here and read the next section.
4. Re-temper it by seeding. One method, from America's Test Kitchen: to three parts melted chocolate, stir in one part finely grated chocolate; the grated chocolate keeps stable crystals that seed the rest as it cools.
5. Bring it back up to the working temperature and check the temper with a small test before you return to production.

For the full method, read how to temper chocolate and our guide to the 8 most common tempering problems.

Burnt chocolate

We know of no technique that takes a scorched taste out of chocolate, so if it smells or tastes burnt, our advice is to treat the batch as lost for production.

Our advice as suppliers to professional kitchens: keep scorched chocolate out of anything you sell, write down how it happened (heat source, setting, time, batch size) and fix that step before the next batch.

Why chocolate overheats, and how to stop it

Chocolate overheats when nothing is controlling the temperature. The melting range on the FCH 55% sheet is only 5°C wide (45–50°C), so heat you cannot read will sooner or later take you past it.

A melter holds the chocolate at the temperature you set; a thermometer tells you where you really are. This is how the equipment we sell divides the work:

What you need	Product	Price
Melt and hold one couverture all day, 6 L	Martellato Meltinchoc analogue MC102, 6 L	$925.00 CAD
Hold two chocolates at once at their own temperatures	Martellato Meltinchoc multi-tank MC108, 2 × 1.5 L	$865.00 CAD
Larger batches, thermostat up to 50°C (122°F), 9 L	Martellato Meltinchoc analogue MC103, 9 L	$1,150.00 CAD
Digital control with presets for dark, milk and white, 6 L	Martellato Digital Meltinchoc MCD102, 6 L	$1,259.99 CAD
A tempering machine with programmable curves, 3.5 kg	Pavoni MiniTemper 110V	$3,350.00 CAD
Compact tabletop tempering for small-batch production, 5 kg	Pomati T5	$11,650.00 CAD
Benchtop tempering at higher volume, 6 kg, up to 45 kg a day (230V)	Bilait Adam K6	$10,990.00 CAD
Read the real temperature in the bowl	Martellato 50T003 probe thermometer	$53.95 CAD

Martellato Meltinchoc: melt and hold

Martellato describes its Meltinchoc as dry melters: a removable stainless steel tank and a manual thermostat to set and keep the temperature you want. The 9 L MC103 and 13.7 L MC104 regulate up to 50°C (122°F), and the multi-tank MC108 keeps two 1.5 L tanks at their own temperatures. Each one includes a 145 mm scraper and runs on 110V.

The Digital Meltinchoc adds PID control, an immersion probe, a graphic display, sound indicators and three preset programs for dark, milk and white chocolate, in 3.6 L, 6 L, 9 L and 13.7 L sizes.

View all chocolate melters →

Pavoni MiniTemper: temper by program

When the chocolate must leave the machine tempered for moulding and dipping, the Pavoni MiniTemper takes 3.5 kg, works between 20°C and 60°C (68–140°F) in 0.5°C steps, and stores five programs of three stages each, so every batch follows the same curve. The basin is interchangeable for quick changes between chocolates, and the version we stock is the 110V / 60 Hz North American one.

View the Pavoni MiniTemper → $3,350.00 CAD

Pomati T5 and Bilait Adam K6: more tempered chocolate per day

When one MiniTemper is no longer enough, the Pomati T5 is a compact 5 kg tabletop tempering machine built for small-batch production in artisan workshops and pastry kitchens. The Bilait Adam K6 has a 6 kg capacity and, according to Bilait's 2026 catalogue, tempers 20 kg of chocolate in 4.5 hours and up to 45 kg a day; it handles any type of chocolate automatically, has a heated vibrating table and runs on 230V.

• View the Pomati T5 → $11,650.00 CAD
• View the Bilait Adam K6 → $10,990.00 CAD

Compare them all in our tempering machines and read the guide chocolate melter vs chocolate temperer.

A thermometer for every bench

Even with a melter, check the chocolate itself. Martellato's 50T003 has an immersion probe and a timer and reads from -32°F to +482°F (about -36°C to 250°C); the 50T001 is made for chocolate work, and the 50T002 reads by infrared.

• View the 50T001 chocolate thermometer → $29.95 CAD
• View the 50T002 infrared thermometer → $76.50 CAD

How AI can help your production

Paste your couverture's tempering curve and your melter settings into an AI assistant and ask it to write a one-page procedure for each chocolate, with a temperature log your team fills in at the start of every shift. When a batch seizes or burns, ask it to turn your notes into a short incident record (what, when, which equipment, what you changed) and to spot patterns over the month. A written routine is what keeps every shift inside the curve, and every batch you keep is waste you do not pay for.

AI organises the information; tasting and the final decision stay with your chef.

Melters and tempering equipment at Zucchero Canada

We are an authorized distributor of Martellato and Pavoni Italia in Canada, and we work with chocolatiers and pastry chefs across Canada to match the melter or tempering machine to their volume:

• Holding couverture and coatings: Martellato Meltinchoc analogue, from 1.7 L to the 13.7 L MC104.
• Several chocolates at once: the Meltinchoc multi-tank.
• Guided temperature control: the Digital Meltinchoc with presets for dark, milk and white.
• Tempered chocolate on demand: the Pavoni MiniTemper.
• More tempered chocolate per day: the Pomati T5 and the Bilait Adam K6.

For the technique behind it all, Ramon Morató's Chocolate (6th edition, 416 pages, 200 recipes) covers tempering, coating and glazing.

View Chocolate by Ramon Morató → $160.00 CAD

Customers who bought their machine from us get 15% off genuine spare parts with the code PARTS15. Questions about equipment for your production? Contact our team, write to sales@zuccherocanada.ca or call 587-774-8873 (toll free 877-741-8251).

Chocolate melters | Tempering machines | Thermometers & scales | How to temper chocolate | How to make melted chocolate thinner

This article is for information only. Every business is different: draw your own conclusions based on your own expectations, budget and goals, and talk to qualified experts before you decide or invest.

Sources: America's Test Kitchen, "How to Fix Seized Chocolate" and K. DeMichele, "How to Work with Chocolate: Storing, Tempering, Melting, and More" (2018); A. Sokmen and G. Gunes, "Influence of some bulk sweeteners on rheological properties of chocolate", LWT – Food Science and Technology 39 (2006) 1053–1058; FCH 55% Venezuela technical data (working conditions); Martellato General Catalogue 2026, "Chocolate melters & fountains"; Bilait General Catalogue 2026, Adam K6; Zucchero Canada product data for Martellato Meltinchoc melters and thermometers, Pavoni MiniTemper, Pomati T5, Bilait Adam K6, Pavoni Chocolart colours and Chocolate by Ramon Morató.