Product Overview 
The yeast propagation system is engineered for the aseptic proliferation of pure yeast cultures in the brewing industry. It ensures a sufficient supply of highly active, contaminant-free, high-quality yeast for the beer fermentation process. The system balances flexibility and specialization, enabling precise propagation of diverse yeast strains based on specific beer production requirements. It supports various propagation modes, effectively meeting the production needs of breweries of all scales.
The equipment features a sanitary, end-to-end process design, complemented by dedicated process components and aseptic control systems. This maximizes yeast viability and survival rates while offering ease of operation, stable performance, and efficient installation. It achieves full-process aseptic and automated control, providing a reliable yeast foundation for brewing.
Features
- Customization with Aseptic Assurance
We have developed a secure and stable process system specifically for propagating freshly activated, contaminant-free yeast. It is tailored for the unique operating conditions of yeast propagation in the brewing sector, preventing microbial contamination at the source and safeguarding yeast purity.
- High-Efficiency Viability Preservation and Controllable Quality
Leveraging a unique process structure and dedicated aeration or agitation mechanisms, we achieve gentle, homogeneous mixing of materials. This maximizes yeast activity and survival rates, ensuring consistent quality of the propagated yeast.
- Specialized Components with Strong Adaptability
All process valves and pipeline fittings are of specialized configurations for yeast propagation. These are designed to meet propagation process demands, preventing material residue and microbial growth. They are adaptable for various strains and propagation modes.
- Simple Operation and Stable Performance
The system adopts a standardized structural design and mature, reliable application technologies. It requires minimal operational training for proficiency. The equipment operates stably with a low failure rate, ensuring continuous and smooth production.
- Sanitary Compliance and Convenient Cleaning
Constructed from sanitary-grade materials, the interiors of the tanks and pipelines are finely polished to minimize microbial adhesion. The system integrates with CIP (Clean-In-Place) systems and steam sterilization functions, enabling full-process aseptic control and automated cleaning.
- Efficient Installation, Saving Time and Labor
Pre-assembly and dry runs are completed at the factory, with components clearly labeled, significantly reducing installation time.
Operating Principle
- Yeast Propagation Process
First, perform in-situ cleaning (CIP) and steam sterilization on the equipment to ensure a sterile environment throughout the system. Subsequently, inject hot or cold wort into the yeast propagation tank. Sterilize the wort using the conical heating jacket, then cool it to the process temperature suitable for yeast growth using the cylindrical cooling jacket. Before inoculation, aerate the wort with sterile air via an aeration spray gun equipped with an air dissolver to meet the dissolved oxygen requirements for the initial stage of yeast growth. (Large tanks are equipped with hollow shaft agitators, which replace traditional aeration structures to achieve gentle and homogeneous material mixing and further ensure yeast viability.)
Throughout the process, under sterile and closed conditions, pure yeast strains are introduced from culture flasks to initiate propagation. During propagation, the system precisely maintains the set process temperature and performs sterile oxygenation as needed, based on the characteristics of the yeast strain, to ensure the conditions required for yeast growth in real-time. Once the yeast cell concentration reaches the preset process standard, the propagated yeast is directly transferred to the intermediate fermentation tank or added directly to the brewing fermentation tank for the beer fermentation process.
- Cleaning Procedure
Before and after equipment operation and material transfer, all pipelines are flushed with clean water and sterilized with high-temperature steam to thoroughly remove residual materials in the pipelines and prevent microbial contamination. The entire yeast propagation system can be flexibly connected to a CIP cleaning station, enabling full-process automated cleaning operations. This significantly reduces maintenance costs and labor intensity, ensuring the equipment maintains a long-term sterile working condition.