 In 21st Century Singapore, Robusta beans continue to be largely imported from Indonesia and Vietnam.In a bid to modernize, heritage brands such as Lam Yeo Coffee Powder Factory choose to use gourmet beans from South Africa and Central America.The general traditional preparation process for Hainanese-style Kopi involves using a combination of 80% beans, 20% sugar and margarine in the roasting process for a duration of 25 minutes at 180 degrees Celsius.