The Escuela only offers a Ceramics Expert Diploma, so during his fourth year Hsieh began studying for a master's degree in chemistry at the Complutense University of Madrid, with the purpose of studying glaze in more depth.
由於馬德里市立陶瓷學校只頒給「陶藝專家文憑」，為了進一步研究釉藥，陶瓷學校 4 年級時，他同時進入馬德里大學攻讀化學碩士。