A hobbycraft online exclusive the fantastic range of liquid airbrush food colours from sugarcraft specialist cassie brown will make even the basic of cakes look stunning this tube contains 17 ml of food safe airbrush cleaner one of the quickest and easiest ways to add colour to a cake is by using cassie browns range of liquid colours in an airbrush system to get the best from your airbrush it is important to keep the nozzle clean to allow free flow of the liquid ink this tube of airbrush