理奇耐在意大利波尔扎诺上大学时提出了一个设想——利用咖啡渣做环保陶器。他回忆说:“我们在大学每天都喝咖啡,上课前,下课后,跟朋友聚会时,泡咖啡吧时……无时无刻不在喝咖啡。所以我就开始思考,这些剩下的咖啡渣就只能被丢掉吗?”他开始和他的教授们讨论如何把这些咖啡渣变成坚固的材料,但是他们花了几年才找到一个可行的办法。
“We tried binding with a lot of different things,” Julian Lechner told VICE Munchies. “We even tried sugar. That was close, but basically it was a candy cup. It just kept dissolving after being used three times.” The whole point was to make the material durable, so it was back to the drawing board for him and his partners at a German research institute. Finally, after many failed experiments, long nights and liters of coffee, they came up with a mix of coffee grounds wood grains and a biopolymer of cellulose, lignin, and natural resins that seemed to behave the way Julian had envisioned it when he first embarked on his quest.
“我们试着用不同的粘着剂,甚至尝试过用糖。”朱利恩·理奇耐在Vice Munchines(一档美食节目)上称,“虽然材料很接近咖啡渣,但是做出来基本上是一只‘糖杯’,而且用了三次之后就融化了。”让原料变得更坚固耐用是最核心的问题,所以他和他的伙伴们又在德国一所研究所从头开始钻研。他们做了无数个失败的试验,熬了无数个漫漫长夜,在试验中用掉了无数升咖啡渣后,最后终于创造了梦寐以求的材料,这种材料由咖啡渣、木料、纤维素和木质素等生物高聚物材料以及天然树脂混合而成。
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