After William received the recipe for making the beers, he immediately began making a small wand to use the core.
It was very easy to use this core and turn it into a wand. All he had to do was carve a trigger rune into the wand and connect the trigger to the core. It was just like making a modern cigarette lighter. While the user was the source of the gas, the core was where the gas was sent, and a small spark was needed to "light" the core and get it going.
After struggling for about an hour and a half, a small and humble wand appeared in his hand. Although it didn't look very nice and was very short, there was no need to worry about its function.