Mugihe abaguzi bakeneye ibiryo bishya, byoroshye, kandi biramba byiyongera kwisi yose, ibiryo bya Richfield biragaragara nkintangarugero mubushobozi bubiri bwo gukonjesha-bikubiyemo ibirungo ndetse na ice cream ishingiye kumata. Gukonjesha-gukama, cyangwa lyophilisation, ni tekinoroji yo mu rwego rwo hejuru tha ...
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