Hot chocolate calculator
Scales chocolate or cocoa to any number of cups at a chosen richness and sweetness, corrects for the liquid you are using, and says what it had to assume to get there.
Used to estimate the sugar the bar already brings, so the tool does not sweeten a drink that is sweet enough.
The reference point for every figure here: enough fat to carry aroma, enough protein to hold an emulsion.
A mug is around 250ml; a small cup around 120ml.
For 1 × 220ml
- Chocolate
- 48 grams (22 grams per 100ml)
- Whole milk
- 220 millilitres
- Sugar to start with
- 1 grams
A pinch of salt, whatever else you do. It suppresses bitterness perception at a level far below where it tastes salty, which lets the chocolate through — the highest-return addition available and it is free.
Method
- Heat the liquid to around 70°C — steaming, with movement at the edges, well short of a simmer. Above roughly 80°C milk proteins denature enough to change the flavour, and boiling adds a skin.
- Chop the chocolate finely and add it off the heat, whisking until smooth and glossy. Whisking rather than stirring is what emulsifies the cocoa butter into the liquid, and that emulsion is the drink's texture.
- Let it stand for a minute before drinking. Straight off the heat it is above the temperature at which anybody can taste much, and aroma perception improves noticeably as it drops.
What this had to assume
- The starting ratios come from documented practice rather than from a measurement of your ingredients. Treat the result as a place to begin and correct from there.
- The chocolate's own sugar is ESTIMATED from the percentage you chose — a bar's remainder after cocoa content is essentially sugar, plus milk solids in a milk chocolate. That is close enough to set a starting sweetness and it is not a nutrition figure.
- Nothing here knows the split between cocoa solids and cocoa butter in your bar, which is what actually determines the texture, and no label declares it.
What this cannot tell you
- The sugar a bar contributes is ESTIMATED from its percentage, not read from a label. It is close enough to set a starting sweetness and it is not a nutrition figure — do not use any number here as one.
- Perceived richness depends on the ratio of cocoa solids to cocoa butter in the chocolate, which determines the texture entirely and is declared on no label anywhere.
- Cocoa-powder drinks cannot reach the viscosity of chocolate-based ones at any quantity, because the cocoa butter has been pressed out. The tool says so rather than offering a dose that pretends otherwise.
- The liquid correction adjusts for aroma DELIVERY rather than for the amount of chocolate present. A skimmed-milk drink is not weaker in cocoa; it delivers less of it, and raising the dose is a compensation you are free to decline.
- Thick chocolate a la taza is thickened with starch, and the cornflour figure is a starting point rather than a calculation — the set depends on the starch, the fat and how long it cooks.
- There is no perfect hot chocolate and no arithmetic could find one. Every figure here is a starting ratio drawn from documented practice.
Two drinks share the name
Drinking chocolate made from real chocolate carries its cocoa butter into the cup, so it is rich and coats the mouth. Cocoa-powder drinks have had most of that butter pressed out, so they are thinner and need more sugar. Neither is a worse version of the other, and the technique for each is different — see making hot chocolate.