Oil Based Food Colouring

What Is Oil Based Food Colouring?

Oil based food colouring (also called oil based food dye) is a food colouring formulated with an oil base rather than water. This distinction is critical in chocolate and fat-based applications — water-based colourings, including standard gel and liquid food dye, cause chocolate to seize and become unusable when mixed in. Oil based colouring integrates seamlessly into fat-rich mediums without affecting texture, viscosity, or temper.

If you are working with chocolate, candy melts, compound coatings, or ganache, oil based colouring is the only type that will give you consistent, professional results. For water-based applications like fondant or royal icing, see our gel food colouring range instead. For an overview of all food colouring types, visit our food colouring collection.

Colour Mill Oil Based Colouring

We stock Colour Mill Oil Based Colouring — the most widely used professional oil based colouring brand in Australia. Known for its intense pigmentation, smooth blendability, and fade-resistant colour, it delivers consistent results across all fat-based applications. Available in over 50 shades in 20ml standard bottles and 100ml bulk bottles, as well as curated 6-pack sets for themed palettes.

For the full Colour Mill range including the Aqua Blend water-compatible line, visit the Colour Mill food colouring collection.

Oil Based Food Colouring for Chocolate

Food colouring for chocolate must always be oil based. When water comes into contact with melted chocolate, it disrupts the fat-crystal structure and causes the chocolate to seize — turning smooth, fluid chocolate into a thick, grainy mass that cannot be recovered. Oil based colouring avoids this entirely, dispersing through the chocolate evenly and producing vibrant, consistent colour.

This applies to all types of chocolate work: dark chocolate, milk chocolate, white chocolate, compound coatings, and cocoa butter. Add a small amount of Colour Mill Oil Based at a time, stir thoroughly, and keep the chocolate at working temperature. Bulk 100ml bottles are ideal for high-volume chocolate production.

Food Colouring for White Chocolate

Food colouring for white chocolate follows the same rule — oil based only. White chocolate is particularly sensitive to water and will seize more quickly than dark or milk chocolate. Because white chocolate has no natural colour of its own, it also shows added colour more vibrantly and accurately, making it the ideal base for creating a wide range of coloured chocolates, drips, and coatings.

Colour Mill Oil Based colouring in White is also useful for brightening white chocolate or compound coating that has a slightly yellow tint, producing a cleaner, brighter result.

Oil Based Colouring for Candy Melts and Coloured Chocolate

Creating coloured melting chocolate and coloured candy melts requires oil based colouring. Whether you are making chocolate bark, cake pops, bonbons, or moulded chocolates, adding oil based colouring to your melted compound or candy melts produces even, vibrant colour throughout. The full Colour Mill Oil Based range — including fashion-forward shades like Teal, Mauve, Burgundy, Denim, and Coral — gives you a broad palette for creative chocolate work.

Oil Based Colouring for Buttercream and Ganache

Oil based colouring also performs exceptionally well in buttercream and ganache. Because these products are fat-rich, the oil based formula integrates more deeply than gel, producing saturated colour with excellent consistency. For deep shades like black, navy, or burgundy in buttercream, oil based colouring requires less product than gel to reach the same depth of colour.

The Colour Mill Booster — available in 20ml and 100ml — is designed to intensify colour depth in buttercream and other applications where a stronger pigment load is needed without increasing product volume.

Colour Mill Oil Based 6-Pack Sets

For bakers who want a curated palette, Colour Mill Oil Based is available in 6-pack sets grouped by theme:

• Botanical — earthy greens, terracottas, and natural tones for garden and floral designs
• Bridal — soft whites, blushes, and neutrals for wedding and elegant occasion cakes
• Outback — warm Australian-inspired tones including sand, clay, and rust
• Pastel — soft, muted shades for baby showers, Easter, and delicate celebration bakes
• Tropical — vibrant brights for summer themes, kids' parties, and bold designs

Each set contains six 20ml bottles and represents excellent value for decorators working within a specific colour palette.

FAQs About Oil Based Food Colouring

Why can't you use regular food colouring in chocolate?

Standard food colourings — including gel, liquid, and water-based types — contain water. When water is introduced to melted chocolate, it causes the cocoa particles and sugar to clump together and the fat to separate, resulting in a seized, grainy texture that cannot be smoothed out. Oil based food colouring contains no water and integrates with the fat in chocolate without causing this reaction.

Can you use oil based food colouring in cake batter?

Yes, oil based colouring can be used in cake batter, though gel food colouring is generally more common for this application. For batters with a high fat content — such as pound cake or oil-based cakes — oil based colouring integrates smoothly. For standard sponge batters, either oil based or gel will work. Browse our gel food colouring range for bake-stable options suited to most cake batters.

Is oil based food colouring the same as candy colour?

Yes — candy colour and oil based food colouring refer to the same type of product. The term "candy colour" is commonly used in American baking, while "oil based food colouring" or "oil based food dye" is the more common term in Australia. Both describe a fat-compatible food colouring suitable for chocolate, candy melts, and compound coatings.

How much oil based food colouring do I need for chocolate?

Start with a few drops per 100g of melted chocolate and stir thoroughly before adding more. Because Colour Mill is highly pigmented, less product is needed than you might expect. For pale or pastel shades, a very small amount goes a long way. For deep, saturated colours like black or red, work up gradually, reheating gently if the chocolate thickens.

Is Colour Mill oil based food colouring vegan and gluten free?

Colour Mill products are generally suitable for vegan and gluten-free use. For confirmed dietary requirements, browse our vegan food colouring and gluten free food colouring collections, or check individual product labels for certification details.

Can you colour cocoa butter with oil based food colouring?

Yes — coloured cocoa butter is one of the best applications for oil based colouring. Colour Mill Oil Based integrates smoothly into melted cocoa butter, producing intense, vivid colour perfect for painting chocolate moulds, creating coloured cocoa butter sheets, or airbrushing. Melt cocoa butter to around 45°C, add colouring, stir thoroughly, and allow to cool to working temperature before use.