I use glass measuring cups(16 oz)from Wally World - place your color in first, spigot out your wax from your presto pot, wait til the desired temp to add FO(i buy the smaller glass measuring cups(4 oz)I have 6 of each of them, so i dont have to wash them up right away; and the glass is easier to see the color in case you need to add more. Also, if you need to remelt the rest of the wax in from the larger measuring cup, just place it in the microwave pour & wipe out with paper towel & wash in soap water. VIOLA! Good Luck, ~Carlena~