Colour Mill
Oil-Soluble Food Coloring - Colour Mill Concrete Grey 100 ml
Oil-soluble food coloring in Concrete Grey, Pro 100 ml format
Colour Mill Concrete Grey evokes smooth slate and a gray stormy sky. This oil-soluble food coloring is designed for fatty pastry bases: melted white chocolate, butter ganache, buttercream, royal icing, and fondant warmed by hand. Particularly sought after by cake designers for contemporary minimalist wedding cakes and urban and architectural-themed birthday layer cakes, it delivers 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 lightening. The Concrete Grey shade remains stable after baking, making it the reference choice for colored cake batters before they go into the oven. The 100 ml bottle is intended for boutique bakeries in regular production: for the same volume, it costs approximately 35% less per milliliter than the 20 ml bottle, for daily use without frequent restocking.
Concrete Grey shade
Official reference from the Colour Mill (Australia) palette.
Concrete Grey: 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 Concrete Grey
5 signature uses where this shade makes the difference:
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• Contemporary minimalist wedding cakes
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• Urban and architectural-themed birthday layer cakes
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• Industrial or loft-themed royal icing cookies
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• Modern chic concrete-themed drip cakes
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• Corporate event cupcakes or launch 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: Concrete Grey
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• Packaging: 100 ml soft squeeze dropper bottle
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• Compatible bases: Melted white chocolate, ganache, buttercream, royal icing, sugar paste
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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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Base preparation: 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 bright 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 color evenly.
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Resting and stabilization: let rest for 30 minutes at room temperature under cling film pressed directly against the surface. The shade develops and reaches its full appearance during resting.
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Optional adjustment: if the shade is too pale, add 1 to 3 additional drops and mix again. Proceed in increments to avoid oversaturation.
Ingredients and compliance
Ingredients: food-grade vegetable oil base and food color 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 - Concrete Grey
Concrete Grey (slug grey) is a niche color, used for ultra-modern minimalist wedding cakes and corporate event orders. Avoid it for children's birthdays (too understated). Combined with Gold lustre and White, it creates the chic, on-trend polished-concrete effect found in contemporary designer cake shops.
Frequently asked questions
At what level of activity does the 100 ml size become cost-effective?
The 100 ml size becomes worthwhile at around 5 colored orders per week. To get started or simply test a shade, the 20 ml size (see above) remains more suitable.
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; it is easier to intensify a color than to lighten it.
Is Colour Mill food coloring heat-resistant?
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 distinguishes it from conventional liquid colorings, which become lighter in the oven.
Can Colour Mill be used on water-based mixtures (royal icing, syrup)?
No, Colour Mill oil-based food coloring is designed for fat-based mixtures: melted chocolate, ganache, buttercream, and fondant. For water-based mixtures, use the Colour Mill water-based range.
Does the bottle have a built-in dropper?
Yes, the 100 ml Colour Mill bottle also has a built-in dropper opening in the soft cap, despite its larger capacity. A simple squeeze dispenses one precise drop.
Take it further
Complete your Colour Mill palette:
