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Technical Recipe intermediate

Shelf-Stable Dark Chocolate Ganache

A 1 kg dark ganache with a calculated aw around 0.75. Use the complete formulation and its model-based storage predictions to develop a filling for your product.

Jump to the 1 kg formula

Ingredient weights and method below; a free account lets you save and adapt the recipe.

Yauheni Padniuk 6 min read Updated October 9, 2026
Professional dark chocolate ganache

Is ganache shelf-stable? It depends on the complete formulation and storage conditions. A simple chocolate-and-cream ganache and a filling formulated with sugars and polyols have different water activity. This 1 kg recipe provides a low-aw starting point: its current Formul.io calculation predicts aw 0.749, about 36.4% fat, and storage estimates of about 54 days at room temperature (20°C) or 209 days refrigerated on the calculator’s default Balanced shelf-life model. These are outputs of the linked recipe model, not results of a storage trial or label dates.

~0.749 Aw
Water Activity
Recipe-model prediction; estimated band 0.734–0.764
54 days
Predicted Shelf Life
Model estimate at 20°C; refrigerated estimate: 209 days
~36%
Fat Content
Total fat, all sources (chocolate, cream, cocoa butter, butter)
1000g
Yield

Formula

IngredientWeight (g)PercentageFunction
Dark Chocolate (66%)53053%Base, flavor
Heavy Cream (35%)22022%Emulsion, moisture
Invert Sugar808%Aw reduction, texture
Sorbitol (crystalline)606%Humectant, Aw reduction
Cocoa Butter505%Replaces cream fat, texture
Glucose Syrup (DE40)303%Crystallization control
Butter (unsalted)303%Mouthfeel, shine

Ingredient Breakdown

Why It Stays Stable

Dissolved sugars and polyols lower the water activity of the filling. This recipe combines invert syrup, crystalline sorbitol and glucose syrup while limiting the water introduced with cream. The full calculation also includes the actual chocolate, butter and cocoa butter, so you can assess texture and composition alongside aw.

The linked formulation currently predicts aw about 0.749. Use the model to compare nearby changes: a different cream, a liquid sorbitol product or a fruit addition changes the input composition and can move several metrics together. Low aw is useful for storage, while the fat balance and emulsion determine how the ganache handles and sets.

Method

1

Prepare chocolate

Chop the chocolate or use callets. Gently melt it with the cocoa butter in a dry bowl, stirring until combined.

2

Heat cream mixture

Combine cream, crystalline sorbitol, invert sugar, and glucose syrup in a saucepan. Heat to 85°C, stirring until the sorbitol and sugars dissolve.

3

Create emulsion

Pour 1/3 of hot cream over chocolate. Let sit 30 seconds, then stir from center outward in small circles. Add remaining cream in two additions, emulsifying each time.

4

Add butter

When ganache reaches 35–40°C, add softened butter and blend until incorporated.

5

Homogenize

Use an immersion blender for 30 seconds to create a perfectly smooth emulsion.

6

Cool properly

Pour into a shallow container. Cool at room temperature (20°C) for 2 hours, then cover and refrigerate.

Pro Tips

  • All equipment must be completely dry - water drops cause seizing
  • Temperature control is critical: heat the cream to 85°C to dissolve the sugars, then add the softened butter only once the ganache has cooled to 35–40°C
  • Never whisk vigorously - this incorporates air and destabilizes the emulsion
  • The immersion blender step is optional but dramatically improves consistency

Customize with Formul.io

This recipe can be adapted for different chocolates, shelf life targets, or flavor additions. Use the Ganache Calculator to recalculate ratios while maintaining stability.

Recalculate This Recipe

Adjust for your chocolate, add flavors, or change batch size

Open the Live Formulation

Built on Valrhona Caraïbe 66% — see its calculated aw (~0.749), fat (~36%) and storage predictions and clone it into your own account

For a useful comparison, clone the linked recipe before changing it. Keep the original as your baseline, replace the ingredient you intend to buy, and compare the recalculated aw, fat balance and storage predictions together. A chocolate with the same cocoa percentage can still have a different fat and sugar composition. Likewise, the word “sorbitol” does not identify whether you are weighing dry crystals or a solution. Match those details before scaling the batch.

Storage & Handling

Keep the ganache protected from moisture, odours and repeated temperature changes. Decide whether the finished product will be stored at room temperature or refrigerated, then use the matching model prediction as the starting point for your storage plan. The current recipe gives about 54 and 209 days respectively; changing its ingredients or process can change those outputs.

Check the finished batch’s aw and follow retained samples in the intended packaging for flavour, emulsion stability and microbial quality. The shelf-life testing guide turns the prediction into checkpoints and a sample plan. Keep cold products sealed while they warm to reduce surface condensation.

Troubleshooting

Ganache is too thick
Warm it gently to 32–34°C and re-blend; a ganache that is only cool will loosen. If it is still too stiff, blend in warm syrup, or milk or water boiled and then cooled to about 35°C, a teaspoon at a time. A 1 kg batch rarely needs more than 1–2 tablespoons. Avoid cream, which adds fat, and recalculate Aw for any added liquid.
Ganache is grainy
Chocolate was shocked by too-hot cream, or temperature dropped too fast during emulsification. Gently rewarm to 32–34°C and re-blend with a submerged immersion blender.
Oil separation on surface
Emulsion is broken. Bring it to 32–34°C and blend first; add liquid only if it stays oily. The split-ganache guide linked below walks through each step.
Can I use a sorbitol syrup instead of crystalline?
Not without recalculating. A 70% sorbitol solution is 30% water, which enlarges the water phase and pushes Aw up — the shelf-life numbers here assume crystalline sorbitol at essentially 0% water. If you only have the syrup, reduce the cream to compensate and re-check Aw on a meter.

How to Fix Split Ganache

Diagnose an oily, grainy or seized batch and re-emulsify it at 32–34°C