I have done that, where If I didn't have enuf wax to fill up containers, I would either pour them into tarts molds. or I would pour them in the container, make new batch, cause I want to make sure the blend, f/o and color are exact, so then I would pour into the container. But when I make candles I don't color them. My customers perfers that...so I don't worry bout matching colors. LOL HTH Dani