zurcian,
I didn't even know there were different varieties for the use of the root for coffee.
I am assuming the variety that we grew was the common one.
Here are some threads that might answer your question:
https://permies.com/t/66530/Chicory-root
https://permies.com/t/66530/Chicory-root
I like finding topics to reply to in our "Zero Replies Topics".
Maybe there will be someone who sees this and has an answer.