Cocoa Processing & Ingredients Hub · Cocoa Knowledge Center

How Cocoa Beans Become Chocolate: Steps and Ingredients

Eleven steps take a cacao pod to a finished bar. Here is each one, what it does, and what actually goes into chocolate.

By Leila Carvajal Erker, Founder, CocoaSupply · Last updated October 10, 2026 · 6 min read

How Do Cocoa Beans Become Chocolate?

Cocoa beans become chocolate by being fermented and dried on the farm, then roasted, cracked and winnowed into nibs, ground into cocoa liquor, and mixed with sugar and cocoa butter. The mix is refined to a fine particle size, conched to develop flavor and texture, tempered for shine and snap, and moulded into bars.

That is the whole journey in one breath. Now let us slow down, because every step changes the final bar.

Steps 1 to 3: What Happens on the Farm?

On the farm, ripe pods are harvested and opened, the wet beans are fermented for several days, and then dried slowly to around 7 percent moisture. These three steps create the flavor precursors and make the beans stable enough to ship. Mistakes here cannot be fixed later in the factory.

1. Harvest

Pods are cut by hand when ripe and opened within a few days. Unripe or overripe pods hurt flavor.

2. Fermentation

Wet beans and pulp sit in boxes, heaps or bags for about 3 to 7 days while microbes break down the pulp and the beans develop flavor precursors. Full detail in our cocoa fermentation process guide.

3. Drying

Beans dry in the sun or on raised beds for about a week, stirred often. Slow drying lets acids escape. Rushed drying locks them in and can cause mold.

Steps 4 to 8: How to Process Cocoa Beans in the Factory

To process cocoa beans in the factory, makers clean and sort them, roast them to develop flavor, crack and winnow them to remove shells, grind the nibs into cocoa liquor, and refine the mixture until particles are too small for the tongue to detect, usually around 20 to 30 microns.

4. Destoning and cleaning

Stones, sticks, flat beans and anything else that came along from the farm get removed.

5. Roasting

Roasting triggers Maillard reactions, drives off some acidity and makes the shell easy to remove. Times and temperatures vary by bean and goal. See How to Roast Cocoa Beans for specifics, including home oven roasting.

6. Winnowing

Roasted beans are cracked and the light shells are blown away, leaving cocoa nibs.

7. Grinding

Nibs are ground into a thick liquid called cocoa liquor or cocoa mass. Pressed, it separates into cocoa butter and cocoa cake, which becomes cocoa powder.

8. Refining

The liquor, sugar and other ingredients are ground until smooth. Too coarse and the chocolate feels gritty.

Steps 9 to 11: Conching, Tempering and Moulding

Conching mixes and aerates warm chocolate for hours or days to drive off harsh volatile acids and coat every particle in cocoa butter. Tempering heats and cools the chocolate so cocoa butter sets in its stable crystal form, giving shine and snap. Moulding shapes the tempered chocolate into bars.

9. Conching

Long conching mellows flavor and smooths texture. Some makers conch briefly to keep bright fruit notes. There is no single right answer here.

10. Tempering

Cocoa butter can crystallize in six forms. Only one, Form V, gives the glossy surface and clean snap people expect. Tempering is how you get it.

11. Moulding

Tempered chocolate goes into moulds, gets tapped to release air bubbles and is cooled until set.

Chocolate Ingredients: What Is Actually in a Bar?

Dark chocolate ingredients are cocoa liquor and sugar, often with extra cocoa butter, and sometimes lecithin as an emulsifier and vanilla. Milk chocolate adds milk solids. White chocolate uses cocoa butter, sugar and milk but no cocoa solids. Fine craft bars often have just two ingredients: cocoa beans and sugar.

• Cocoa liquor gives the cocoa flavor, color and body. It is pure ground cocoa, with no alcohol.
• Cocoa butter adds melt and smoothness. Makers often add extra to help chocolate flow.
• Sugar balances bitterness. More sugar means a lower cocoa percentage.
• Milk powder appears in milk and white chocolate.
• Lecithin, usually from soy or sunflower, thins the chocolate. US rules cap emulsifiers at 1 percent in dark and milk chocolate.^[1]
• Vanilla rounds out flavor. Real vanilla is a good sign. Vanillin is a cheaper substitute.

Want to know what the number on the wrapper means? Read What Cocoa Percentage in Chocolate Means.

Why Does This Process Matter When You Buy Cocoa Ingredients?

Every step leaves a fingerprint. If you buy beans, the farm steps decide your flavor ceiling. If you buy cocoa liquor, butter or powder, the roasting, pressing and alkalizing choices decide how it behaves in your recipe. Knowing the process helps you ask suppliers the right questions about origin, fermentation and processing.

Ask for fermentation days, a cut test, roast profile and origin. Good suppliers answer without hesitating.

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