It is believed that when this led to insufficient quantities of wine being available to fulfill the contracts, some producers started to search for methods, including illegal ones, to "correct" the wines.
このために契約を満たすのに必要なワインを供給できなくなった時、一部の生産者が（違法なものも含め）ワインを「修正する」方法を探し始めたとされる。