On-site Planning
Installation & Commissioning
Automated & Energy Efficient
Client Name: C****L
Country: Republic of Colombia
Region: Quindío Department – Core area of the Colombian Coffee Cultural Landscape, a world-renowned gold producing region for Arabica coffee
Core Products: Premium freeze-dried instant coffee powder, cold brew freeze-dried coffee crystals, organic instant coffee, single-origin instant coffee series
Equipment Configuration: Hadof custom continuous vacuum freeze-drying production line (industrial dual-chamber system + multi-stage temperature control curve module + aroma recovery system)
Commissioning Date: Q4 2021
Colombia is a major producer of Arabica coffee worldwide. Quindío Department, with its mild climate, volcanic soil, and traditional cultivation techniques, produces high-quality coffee beans characterized by bright acidity, nutty and caramel notes. C****L has over twenty years of experience in coffee cultivation and processing, and its estates have won quality awards from the Colombian Coffee Growers Federation (FNC) multiple times. When expanding into the global high-end instant coffee market, traditional spray drying technology faced limitations:
Aroma & Flavor Loss: The high temperatures of traditional spray drying cause more than 50% of volatile aromatic compounds (such as furans, pyrazines, aldehydes) to escape, resulting in a flat flavor profile that fails to meet the "freshly brewed" expectations of the specialty coffee market.
Solubility & Cold Brew Performance: Traditional instant coffee tends to clump and dissolve incompletely in cold water or milk, making it unsuitable for the rapidly growing cold brew and ready-to-drink coffee markets.
International Certification Hurdles: Markets in Europe, America, and Asia have strict requirements for organic coffee, sustainable farming, and traceability. Older production lines struggle to meet certifications such as Rainforest Alliance and UTZ.
C****L's core requirement: produce instant coffee powder that fully captures the terroir of Colombian coffee, offers excellent solubility, and meets international organic standards. After evaluating multiple proposals from Europe and Japan, the client ultimately chose Hadof's fully customized continuous freeze-drying system. We deeply optimized the system for the characteristics of coffee extract:
Solution: Three Core Designs Tailored to Coffee Characteristics
1. "Smart Vacuum Gradient + Low-Temperature Sublimation" Custom Freeze-Drying Curve
Coffee extract is rich in sugars, organic acids, and aromatic esters, with a complex eutectic point. We designed a three-stage precise temperature control process:
- Pre-freezing stage: Rapid crystallization at -42°C forms fine, uniform ice crystals, preventing the formation of large ice crystals that could damage cell walls and cause loss of flavor compounds;
- Primary drying stage: Dynamic adjustment of vacuum (35Pa～75Pa) and shelf temperature ensures a stable sublimation interface, increasing drying efficiency by approximately 30%;
- Secondary drying stage: Gentle heating to 38°C～42°C ensures final moisture content ≤2.5%, while preventing excessive Maillard reactions that could affect color.
This process increases the retention of characteristic coffee aroma compounds (e.g., 2-methylfuran, guaiacol) by 55% compared to traditional spray drying, producing a delicate "coffee oil" sheen upon reconstitution, with sensory evaluation reaching the level of freshly brewed coffee in specialty coffee shops.
2. Industrial Continuous Production & Hygienic Design
To meet the demand of processing 4,000 tons of coffee extract annually, the line is equipped with a dual-chamber alternating discharge system, enabling seamless continuous feeding and freeze-drying, with a daily processing capacity of 10 tons (extract). The chamber is made of full SUS316L stainless steel, mirror-polished to Ra≤0.4μm, all welds passivated, and equipped with a high-pressure rotary spray CIP system, meeting EU EC 1935/2004 food contact material standards. The production line passed FSSC 22000 certification, unlocking access to premium markets.
3. Energy-Efficient Heat Pump & Waste Heat Recovery System
Considering electricity costs and sustainability requirements in Colombia's mountainous regions, the freeze-drying unit is equipped with an industrial high-temperature heat pump that recovers waste heat from the refrigeration system for use in the secondary drying stage. Additionally, defrost water from the condenser is heat-exchanged to preheat raw materials. Overall energy consumption is reduced by approximately 28% compared to traditional freeze-drying equipment, earning recognition as a "Green Industrial Innovation Project" in Colombia, along with local government tax incentives.
Client Testimonial: From Coffee Bean Exporter to Premium Instant Coffee Brand
After three years of stable operation, C****L has successfully transformed from a coffee bean exporter into a premium instant coffee brand.
Market & Certification Breakthrough
- Achieved USDA Organic, EU Euro-Leaf Organic, and Kosher certifications, entering high-end channels such as Whole Foods Market and Ole;
- Supplies customized freeze-dried coffee powder to four European specialty coffee chains, with export orders growing at a compound annual growth rate of 64%.
Significant Economic Benefits
- Loss Control: Traditional spray drying results in 7%–10% material loss due to wall adhesion and heat sensitivity; the freeze-drying line reduces total loss to under 1.4%;
- Product Premium: Freeze-dried premium instant coffee powder sells at 3.5 times the price of ordinary instant coffee, achieving full equipment investment payback and doubling profits by the third year of operation.
Sustainable Development
- With the heat pump recovery system, carbon emissions per ton of product are 24% lower than the industry benchmark, qualifying for green financing from Colombian export credit agencies;
- Uses coffee processing byproducts (coffee pulp, silverskin) as biomass fuel for supplementary heating, further reducing reliance on fossil fuels.
"Hadof's freeze-drying system is not just equipment; it is a faithful translator of our coffee story. It perfectly encapsulates the Andean breeze, the nutrients of volcanic soil, and the craftsmanship of our coffee farmers into every crystal. When consumers around the world brew this coffee, they taste the true Colombia."
—— C****L, Operations Director
