Hi Brewer and welcome to the vine. The rhubarb schnapps’ is a bit of an on going joke on the vine . So was "Carrot wine" in the "Gardeners Rest" fiction. Some Grapes make wine and beer from scratch but some just like something other than Rhubarb crumble after the fifth or sixth bowl. Not having the room or equipment to brew or distil many choose to make variations of sloe gin etc.
It all started with the question "what can I do with all this Rhubarb as no one want's it?" rather than "How do you make Rhubarb Schnapps?"
Thanks for your post on how to distil anything that is brewable. I am sure that it will be a popular subject especially if you are going to be on hand to offer advice.
Jaxom