"Well, it was a NEWT level potions question for me, about using Sage root in shielding potions, and when I found it didn't conflict with any of the other ingredients, I thought it would be a wise addition." She thought about the other, "The arrow root? I did a bit of research, and found out it was used in quick set quills. So, I did some research, and found it was mostly inert."
She stood up, and walked over towards the cauldrons, "I thought, since the brews took so long to cure anyway, it wouldn't hurt anything to try it since neither ingredient was going to be dangerous in combination with any of the ingredients I had. The whole process took almost eight hours to make. It wasn't hard, just time consuming."