Amashanyarazi yumye yumye akoreshwa cyane cyane kumashanyarazi yumye aboneka mumavuta cyangwa amavuta ashingiye kuri sintetike. Intego yabo y'ibanze ni ukugabanya ibice byamazi yo gutobora mu mazi ashingiye ku mazi, ashingiye ku mavuta, cyangwa ashingiye ku mazi yo gucukura, kugira ngo yubahirize ibipimo byangiza ibidukikije. Byongeye kandi, bafasha mukugarura amazi meza yo gucukura kandi bigira uruhare mukugabanya ibiciro mubikorwa byo gucukura.