Description
Natural food colouring uses plant and mineral pigments instead of synthetic dyes. This guide shows Australian bakers what to expect in buttercream, batter and icing, and how to pick the right bottle for the job.
Natural Food Colouring: A Complete Guide for Australian Bakers
#TLDR Natural food colouring comes from plants, minerals and (in some brands) carmine. It gives softer, garden-like shades rather than neon. You need more drops than gel paste, colours can shift with pH and heat, and deep red or black is still hard. Use it when you want a dye-conscious bake. Keep concentrated gel food colouring for true primaries and dark shades.
- What counts as natural food colouring
- What it can and cannot do
- How to use it in buttercream, glaze and batter
- Kitchen pigments vs bottled colour
- Shopping in Australia
What counts as natural food colouring
“Natural” on a bottle means the pigment comes from a food or plant source rather than a synthetic azo dye. King Arthur Baking used a four-colour plant-based set (blue, yellow, pink, rusty red) for an entire holiday catalogue, and notes those colours are vegan-friendly and free of common allergens such as gluten, egg and peanut. Queen Fine Foods in Australia sells a Pink, Purple, Green and Yellow dropper set made here, labelled natural, kosher and halal. Read the fine print: Queen lists curcumins, carmines, blue gardenia and safflower among the colours. Carmine is insect-derived, so it is natural but not vegan.
Plant-based does not always mean flavour-free. Some kitchen dyes (beet, turmeric, matcha) taste of the source. Bottled natural colours are usually milder.
Browse the full food colouring range when you need both natural-leaning shades and workhorse gels.
What it can and cannot do
Natural pigments are less concentrated than professional gels. King Arthur’s decorator counted drops into 2 tablespoons of glaze: 50 drops of pink for a holiday red, 15 of blue for a solid blue, 3 of yellow for a bright yellow. That is less than a teaspoon, but it is far more product than a toothpick of Colour Mill or Chefmaster.
Reddit food-science discussion points out that plant reds shift with pH, solubility and heat. Beet can go muddy or brown in alkaline batter. Spirulina blues fade in acid. You will not get a true coal black or pillar-box red from plants alone. For those jobs, a concentrated gel or oil-based colour is still the honest tool.
What natural colour does well: dusty rose, sage, marigold, terracotta, soft lilac, cocoa browns. Those shades sit beautifully on botanical cakes and kids’ party trays when you want colour without a chemical neon.
How to use it in buttercream, glaze and batter
Start with a white or pale base. American buttercream made with a whitener or a Swiss meringue base takes colour more cleanly than a yellow butter frosting. Add colour drop by drop. Wait a few minutes; some plant pigments deepen as they hydrate.
King Arthur found simple cookie glaze takes colour more readily than royal icing. If you decorate biscuits, glaze first, then use a small amount of royal icing for white linework.
For cocoa browns and near-black, they mix cocoa to a paste with a few drops of water, then fold that paste into glaze. The same trick works in buttercream: bloom cocoa or black cocoa before you chase the last grey out with gel.
Batter is less reliable. Heat and baking soda change anthocyanins. Expect a softer crumb colour than the bowl colour. If the cake must match a character brief, use gel in the crumb and keep natural colour for the icing.
Finish with sprinkles or edible toppers so the design does not rely on one pigment hitting a neon target.
Kitchen pigments vs bottled colour
You can steep beet, spinach, butterfly pea, turmeric or freeze-dried berries, as Food52 outlines. Cool the liquid completely before you add it to icing, or you will melt the butter. Homemade dyes add water, so they thin buttercream. Bottled natural colours (Queen-style droppers or professional plant powders) keep moisture under control and give repeatable shades.
Use kitchen dyes for a one-off rustic cake. Use a bottled set when you need the same dusty pink next Saturday.
Shopping in Australia
Look for:
- Dropper liquids for icing and small batches (Queen’s 4 x 7ml set is the supermarket starting point).
- Plant powders if you want stronger colour with less liquid.
- Standard gel and oil colour for reds, blacks and chocolate work.
Check labels for carmine if you bake vegan. Check halal or kosher marks if that matters for the order. Pair colour with natural flavourings when the brief is “clean label” from crumb to frosting.
A practical way to choose
Ask what the cake needs to do. Soft spring tones, a dye-conscious kids’ party, a pressed-flower wedding cake: natural colour is a good fit. Logo-accurate red, Halloween black, or a six-colour rainbow smash cake: reach for concentrated gel and save natural colour for the details.
Shop food colouring, flavourings and cake decorating supplies at Baking Pleasures online or in Tweed Heads.