The Colour Mill Oil Based Food Colouring: Purple 20ml is a great way to add a vibrant and unique colour to your food creations. This oil based food colouring is perfect for adding a deep, rich colour to your baking, cake decorating, and other food creations. It is easy to use and can be added to both oil and water-based recipes. The oil based colouring is also suitable for use in chocolate and candy making. This food colouring is made with natural ingredients and is free from artificial preservatives, flavours, and colours. It is also gluten-free and vegan-friendly. The 20ml bottle is easy to store and use, and the colour is highly concentrated, so a little goes a long way. The colour is also heat stable, so it won't fade or change when cooked. To use, simply add a few drops of the food colouring to your recipe and mix until the desired colour is achieved. The colour can be adjusted by adding more or less of the food colouring. For best results, use a plastic or wooden spoon to mix the colouring into your recipe. The Colour Mill Oil Based Food Colouring: Purple 20ml is a great way to add a unique and vibrant colour to your food creations. It is easy to use, highly concentrated, and free from artificial preservatives, flavours, and colours.