Flame the top of the media to remove the bubbles. This will yield about 35 plates per liter of media. If you are getting 25 plates or fewer, the plates are too thick. If you are getting more than 40 plates, they are too thin. Think plates dry out quickly and are difficult to use.
Thick plates waste media and are hard to print.
Pour the bottom plate of a stack first, holding up the remainder of the stack with your free hand. Cap the plate and pour the next one until the stack of 20 is completed. Label the top plate of each stack. Allow plates to cool until solid. The cooler the media is upon pouring, the faster they will solidify.