Golden Cup Technician Certificate (Brewing & Grinding).  A Certified Golden Cup Technician (GCT) is a coffee professional representing not only his/her own company in the field, but also representing the SCA. A Certified GCT should be prepared to conduct a Golden Cup analysis upon request. A GCT may be called upon to analyze the brews at locations of his/her own company, wholesale customers, or customers of a competing vendor.