Gentle or intense grape crushing?
Conical roller crusher, images c. 1930 Figure 5. Single roller-plate crushers: (a) Acher/Thiebaut de Berneaud crusher with nails in the roller, image c. 1829, (b) Simon Frèrescrusher, with reciprocating blades in roller, image c. 1895 winemaking. wiemakig
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