Hi , just hoping someone can help with advice on colouring pasta tubes ready for a threading activity. A few weeks ago a a TA tried to colour pasta in a tray with a bit of food colouring, which worked but was messy and the resulting pasta was a bit patchy looking. Just wondered if any one has a better idea. l did look on the net and it suggested using alcohol,but not sure l want to waste my vodka on that?!!