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Food waste cement: A gingerbread house-style building option

Tokyo University researchers Yuya Sakai, left, and Kota Machida, right, check on dried vegetables and fruit peels before pulverizing them to particles at their university laboratory in Tokyo, on May 26, 2022. The university researchers have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) Particles of dried cabbage that were pulverized in a mixer are seen at the laboratory of Tokyo University in Tokyo, on May 26, 2022. The university's researchers Kota Machida and Yuya Sakai have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) A plate and cup made from food cement are seen at the laboratory of Tokyo University in Tokyo on May 26, 2022. The university's researchers Kota Machida and Yuya Sakai have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) Food cement made out of dried cabbage is seen on May 26, 2022, at the laboratory of Tokyo University in Tokyo. The university's researchers Kota Machida and Yuya Sakai have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) Chinese cabbage being dried is seen in glass flask at the laboratory of Tokyo University in Tokyo, on May 26, 2022. The university's researchers Kota Machida and Yuya Sakai have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) Tokyo University researchers Yuya Sakai, left, and Kota Machida, right, check on dried vegetables and fruit peels before pulverizing them to particles at their university laboratory in Tokyo, on May 26, 2022. The university's researchers have developed a technology that can transform food waste into “cement" for construction use. (AP Photo/Chisato Tanaka) Tokyo University researchers Yuya Sakai, right, and Kota Machida pose for photos with products they made out of 'food cement' at their laboratory in Tokyo on May 26, 2022. Sakai and Machida developed a technology that can transform food waste into "cement" for construction use. (AP Photo/Chisato Tanaka)