Colour Mill
Oil-Soluble Food Coloring - Colour Mill Cobalt
Oil-soluble food coloring in Cobalt, 20 ml format
Colour Mill Cobalt evokes Delft ceramic pigment and tropical fish scales. This oil-soluble food coloring is designed for fat-based pastry preparations: melted white chocolate, butter ganache, buttercream, royal icing, and fondant softened by the warmth of your hands. Particularly sought after by cake designers for tropical ocean and diving-themed layer cakes and destination wedding cakes for Mediterranean or French Riviera weddings, it offers a distinctive shade recognizable from the Colour Mill (Australia) palette.
Made in Australia using proprietary pigment encapsulation technology, Colour Mill withstands baking temperatures of up to 180°C without shifting or fading. The Cobalt shade remains stable after baking, making it the reference choice for colored cake batters before they go into the oven. The 20 ml soft squeeze dropper bottle allows precise dosing for occasional use and shade testing, without waste when preparing small batches.
Cobalt shade
Official reference from the Colour Mill (Australia) palette.
Cobalt: 3 shades according to dosage
The shade can be subtly adjusted according to the dosage without losing its identity.
Light dosage
2 to 3 drops / 250 g
Standard dosage
5 to 8 drops / 250 g
Intense dosage
15 to 25 drops / 250 g
Creative ideas with Cobalt
5 signature uses where this shade makes the difference:
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• Tropical ocean and diving-themed layer cakes
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• Destination wedding cakes for Mediterranean or French Riviera weddings
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• Fish, whale, or ocean-shaped royal icing cookies
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• Nautical or tropical adult-themed drip cakes
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• Under-the-sea themed event cupcakes
Features
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• Brand: Colour Mill (Australia)
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• Type: Concentrated oil-soluble food coloring
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• Shade: Cobalt
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• Packaging: 20 ml soft squeeze dropper bottle
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• Compatible bases: Melted white chocolate, ganache, buttercream, royal icing, fondant
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• Typical dosage: 2 to 6 drops per 250 g of mixture
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• Baking resistance: Stable up to 180°C, does not lighten after baking
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• Origin: Australia (proprietary manufacturing)
Instructions for use
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Preparing the base: bring the fat-based mixture (white chocolate, ganache, buttercream) to 25-30°C. Above 35°C, some pigments may lose intensity.
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Initial dosage: shake the bottle for 10 seconds. Add 2 to 4 drops per 250 g of mixture for pastel shades, 6 to 10 drops for vivid shades, and 15 to 25 drops for dark shades.
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Mixing: whisk with a stand mixer or silicone spatula for 30 to 60 seconds to distribute the colour evenly.
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Resting and stabilisation: leave to rest for 30 minutes at room temperature under cling film pressed directly onto the surface. The shade develops and reaches its full intensity while resting.
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Optional adjustment: if the shade is too pale, add 1 to 3 extra drops and mix again. Proceed in increments to avoid oversaturation.
Ingredients and compliance
Composition: food-grade vegetable oil base and food colour pigments compliant with European regulations (EU 1333/2008).
Allergens: no major allergens declared. Gluten-free, lactose-free, egg-free, peanut-free, soy-free. Suitable for vegetarian and vegan diets.
Storage
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• Keep the bottle closed in a cool, dry place away from direct light.
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• Ideal storage temperature: between 15 and 22°C.
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• Slight pigment/oil separation is normal after prolonged storage: shake for 10 seconds before use.
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• Once opened, use within 12 months to preserve maximum pigment intensity.
Patissland Tip - Cobalt
Cobalt is brighter and more electric than Royal or Navy; it is the ultimate pop blue. Combine it with Sky Blue and Tiffany for an ocean gradient, or with Yellow and Coral for a summery Côte d’Azur effect. Excellent for children’s ocean-themed birthdays, sea monsters, and pirates.
Frequently asked questions
Is the 20 ml size sufficient for regular use?
Expect approximately 30 to 50 colored batches from a 20 ml bottle, depending on the dosage. For regular professional use, the 100 ml size (see above) costs approximately 35% less per milliliter.
How many drops are needed for 250 g of buttercream?
For pastel shades: 2 to 4 drops. For bright shades: 5 to 10 drops. For dark shades: 12 to 20 drops. Always start with less and gradually adjust; intensifying is easier than lightening.
Does Colour Mill food coloring withstand baking?
Yes, Colour Mill is one of the few oil-based food colorings that retains its intensity after baking at up to 180°C. This property sets it apart from classic liquid colorings, which become lighter in the oven.
Can Colour Mill be used on water-based mixtures (royal icing, syrup)?
No, oil-based Colour Mill is designed for fat-based mixtures: melted chocolate, ganache, buttercream, and sugar paste. For water-based mixtures, use the water-soluble Colour Mill range.
Does the bottle have a built-in dropper?
Yes, the 20 ml Colour Mill bottle has a dropper opening built into the soft cap. A simple squeeze dispenses one precise drop.
Take it further
Complete your Colour Mill palette:
