When you receive the Tooth Powder Refill in the mail, it will be double bagged. We recommend that you take it out of the first bag, and cut a small hole in the bottom corner. You may need to let a little air in the bag to move the powder out of the way. By cutting the hole you create a funnel of sorts that helps direct the powder into the container.
Place the container on a clean piece of paper, unscrew and remove the container lid, and simply pour the powder into the container. By having the paper underneath, you can pour any that spills back into the container.
Make sure to leave an air gap in the container. This allows the tooth powder to pour onto your toothbrush more easily, and accurately.
After pouring any powder that spilled onto the paper back into the container, you are finished!