An Si Sung, a traditional onggi potter in Korea instructs Jason on how to use the pottery wheel. 2012. Photo taken by Liz White. Editorial Conversation: Book 2 - Chapter 4: An Introduction to the Production of Clay Ceramics Jason M Cohen 9 Feb 2023 Share on Twitter Share on Facebook Share on LinkedIn Share on Pinterest Share via Email Copy link The show is also available on YouTube and Spotify. Podcast Jason M Cohen Master of Ceremonies here on Tea Technique. Elsewhere, Founder & former CEO of Analytical Flavor Systems. Previously, Founder and Executive Director of the Tea Institute at Penn State (defunct). Comments