Zotsatira zoyamba za kupuma kwa madzi zimatanthawuza kutsekemera kwakukulu. Kuyambira pachiyambi, timamvetsetsa kuti mphamvu yonunkhira imakhala yofewa komanso kuti njira yosankhidwa imakhala yokoma kwa m'mawa wodekha kuposa mphamvu ya Robusta wopanga khofi. (Onani ndemanga yonse….)