Three generations.
A life in coffee.
From an 18 m² workshop in Konak to our manufacturing facility in Kemalpaşa, we have grown with the people who grind, roast and serve coffee.
We are a family business bringing together machinery manufacturing, engineering, coffee education and roasting experience.

Built in İzmir.
Passed from generation to generation.
Mustafa UMSU and the first workshop
Mustafa UMSU began in an 18 m² workshop in Konak, İzmir. In 1951, he was the first in Türkiye to commercialise a natural-stone Turkish coffee grinder. That workshop laid the foundations for GARANTİ and a grinding equipment range that became widely known in the Turkish coffee sector.
From grinding to roasting
Company owner and second-generation representative Süleyman UMSU expanded the business into a larger workshop in Bornova. There, he developed shop-type and industrial roasting machines, extending GARANTİ’s expertise from coffee grinding to roasting.
A permanent manufacturing home
In 1999, Süleyman UMSU established our current factory in the area that later became the Kemalpaşa Organized Industrial Zone. This facility remains GARANTİ Roasters’ manufacturing home.
The third generation carries the work forward
Engineers Sinem UMSU and Can UMSU continue the family’s work, bringing quality control, coffee education, business development and operations into the company’s next chapter.
Engineering knowledge.
Practical coffee experience.
Sinem UMSU
Quality Control Manager, coffee educator and strategic coffee solutions consultant. Her work connects equipment quality with the knowledge and practical needs of coffee professionals.
Can UMSU
Business Development, Sales and Operations Manager. His work brings customer projects, commercial development and day-to-day operations together.
Our heritage.
A new visual language.
FOCHA brings GARANTİ’s roasting heritage into a contemporary shop roaster, combining a distinctive visual identity with a focus on the relationship between the machine, its user and the space around it.
The FOCHA form building visual collection received an iF DESIGN AWARD 2024 in Communication / Product and Service Branding.
Award ID: 608498.
Design: GARANTI ROASTERS — Tansel ÜNAL, Can UMSU.
Client / Manufacturer: GARANTI ROASTERS, İzmir, Türkiye.

Connected by coffee.
Alongside GARANTİ Roasters, our sister companies work in coffee education and coffee roasting.
RoastingWorks Coffee Hub
A place for coffee education, connecting learning with the practical craft of roasting.
RoastingWorks Coffee Company
Our sister company dedicated to coffee roasting, adding everyday production experience to the wider family business.
Your next chapter starts
with a conversation.
Tell us about your coffee, your production goals and the space you are working with.
Discuss your project →

