Susan Wanjiru Kimani was born in Ngaita to a large polygamous family with 14 children. Susan parents were small holder coffee farmers. Susan vividly remembers when her father planted their first coffee stems in 1959. All of Susan siblings were brought up and seen through secondary school education by her parents thanks to payments that the family received regularly for coffee cherries delivered to Ngaita Wet Mill.

Susan, a retired nurse, inherited her 250 stems of coffee trees from her late father in 1997. Realising very little income from coffee trees and with some spare money from her pension, Susan neglected coffee farming, opting to plant maize and Napier grass in her coffee Shamba. It was not until the year 2006 when news about the partnership between Mars Drinks and the Coop reached her that Susan decided to rehabilitate her coffee trees. She became active and attended a series of training sessions organised by the Coop. In two years her cherry production has risen from a low of 43 kg to 430 kg. Recognising her efforts, the Coop has appointed her a promoter farmer.

Susan attributes her success to improved payments made by the Coop and the assistance from her casual labourer Mary Wanjiku. Mary, who has worked in coffee farms since 1965 and has attended some training in Coffee Research Foundation, is an expert in coffee pruning and management. Her skill is the envy of many men in the village. She has set a high target for Susan and herself, planning to raise the current production from 2kg per stem to 5 kg per stem in the next 2 years. 'We hope to combine organic manure and inorganic fertilisers to hit 5kg per stem and above. We want to maximise on income per stem instead of focussing on income per Kg of cherryi states Mary with a lot of anticipation.