Dark couverture melts to 115 to 120 F, cools to 82 to 84 F to set the right crystal, then comes back to 88 to 90 F to work. Milk and white run cooler at every step, because they carry less cocoa solid and more milk solid and sugar.
Updated 2026. Worked from published standards and trade convention; researched, not professional advice.
Published melt, cool and working temperature ranges by chocolate type, with the seeding quantities.
The formula
melt, cool to set the crystal, then return to working temperature
The three step shape is the same for every type: melt fully, cool to seed the crystal you want, then bring back to working temperature and hold it there. Only the numbers move, and they move because the cocoa butter fraction differs.
The seeding method is the easiest at home: melt two thirds of your chocolate, then stir in the remaining third off the heat as seed. The unmelted chocolate carries the crystal structure you want and drags the whole batch into it as it cools.
Compound coatings and candy melts are not couverture and do not need tempering at all. They set hard because they are made with vegetable fat rather than cocoa butter, which is also why they never quite taste like chocolate.
Derived, published or convention?
These are PUBLISHED working ranges from couverture manufacturer charts. Makers print slightly different numbers for their own recipes, so the bag beats this chart. The two thirds seeding split is TRADE CONVENTION.
Tempering temperatures by chocolate type
Chocolate
Melt to (F)
Cool to (F)
Work at (F)
Why it differs
Dark couverture
115 to 120
82 to 84
88 to 90
Highest cocoa solid and cocoa butter content
Milk couverture
110 to 115
80 to 82
86 to 88
Milk solids and sugar in place of cocoa solids
White couverture
105 to 110
78 to 80
84 to 86
No cocoa solids at all, sets on cocoa butter alone
Published couverture manufacturer ranges. A degree or two matters here, which is why an accurate probe is not optional.
Gear for these numbers
These are rendered from the verified catalog and re-ordered against your numbers once you calculate.
A one second reading, which is what makes it usable for Swiss meringue where you are holding a whisk in the other hand and the syrup is still climbing.
Best for:Swiss and Italian meringue, and sugar work
An infrared gun reads the surface of a chocolate bowl without putting a probe in it, which is how you check a temper without seeding the chocolate off a cold probe.
Marble stays below room temperature, which is why it is the traditional surface for tempering chocolate by tabling and for rolling fondant without it going sticky.
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Questions people ask
What happens if chocolate is out of temper?
It sets dull and soft, often with pale streaks or a grey bloom on the surface, and it snaps limply rather than cleanly. None of that is a safety problem and it tastes the same. It is a crystal structure problem: cocoa butter can set in several forms and only one of them is glossy, firm and stable at room temperature.
Do I need a marble slab to temper chocolate?
No. Tabling on marble is the traditional method and it is fast, but the seeding method works with nothing more than a bowl and a thermometer: melt two thirds, stir in the remaining third off the heat, and let the unmelted chocolate carry the crystal. Marble helps most when you are working continuously and need to cool a batch quickly.
Why does white chocolate temper at a lower temperature?
Because it carries no cocoa solids and a high proportion of milk solids and sugar, both of which scorch more easily than cocoa does. Take white chocolate much above 110 F and the milk solids start to catch, which gives a grainy texture and a cooked note that no amount of stirring will remove.
Can I re-temper chocolate that has set badly?
Yes, and that is one of the useful things about chocolate: it can be melted and tempered again repeatedly without harm. Melt it fully back to the top of its range so every existing crystal is destroyed, then take it through the cool and working steps again. Chocolate that has bloomed is fine to re-melt.
This calculator does arithmetic on the numbers you give it. It does not know your oven, your recipe or
your altitude. Figures are labelled as derived, published or trade convention, and where no honest
figure exists the calculator says so instead of producing one. Researched guidance, not professional advice.