Case study

Optimizing Yeast Production for Breweries with Sterile Practices Using the TOMY Autoclave

A craft yeast laboratory improves sterility, throughput, and confidence in yeast production with the TOMY SX Series Autoclave.

Customer:A craft yeast laboratory
Challenge:Maintaining strict sterility in yeast production
Solution:TOMY SX Series Autoclave
Results:Overnight cycles • High capacity • Low maintenance
Time Savings
Higher Sterility
Larger Loads
Low Maintenance

Beer formulation begins with a single-celled microorganism, yeast. Different yeast strains, such as top-fermenting yeast and bottom-fermenting yeast, create the different flavor profiles found across popular beer styles. Sterile yeast production is crucial in brewing high-quality craft beer. Preventing contamination from unwanted microorganisms, such as wild yeast, ensures consistent flavors from batch to batch. This commitment to quality control directly impacts the final flavor profile of the beer.

At a craft yeast laboratory, sterility is one of the most significant parts of the process. Working with other breweries, distilleries, and analytical labs, quality control is an important focus for their team. We spoke with Giarratano about his experience using the TOMY SX Series Autoclave. Our interview below is edited for formatting.

The Challenge: Maintaining Sterility

TOMY USA: What are the biggest challenges in yeast production?

Lab Representative: My biggest challenge is keeping everything sterile. We have to work at a higher level of sterility than our customers do in breweries. Therefore, ensuring everything is heated to the proper temperature and is sterile is the main focus of our work.

“We have to work at a higher level of sterility than our customers do in breweries.”

The Solution: TOMY SX Series Autoclaves

TOMY USA: How have the TOMY SX Series Autoclaves helped in your process of keeping production sterile?

Lab Representative: It is a game changer. It saves us time with its automated design and high capacity. We are autoclaving as much volume as we possibly can per run. The double-stack baskets within the deep autoclave enable us to autoclave quite a bit more volume per run. The automated design lets us set it and forget it. We can run the cycle overnight and see the cycle completed properly. It has been really easy to use.

“The automated design lets us set it and forget it… run the cycle overnight and see it completed properly.”
Before
  • Smaller batches
  • Manual monitoring
  • Longer turnaround
After with TOMY
  • Higher capacity (deep chamber)
  • “Set & forget” automation
  • Overnight completion

Why TOMY? Reliability & Capacity

TOMY USA: What are the main reasons for choosing TOMY Autoclaves?

Lab Representative: We needed something robust, with little maintenance, that could provide enough capacity. The cylindrical design with top loading works great for our needs. We’ve had one of our four autoclaves for 7 years, and the only maintenance we needed to do was change the lid gasket and the exhaust bottle. Other than that, I’ve never had a problem.

Time-Saving
Higher Sterility
High Capacity
Low Maintenance

Attention to Detail: Designed for Every Lab

TOMY USA: What are your suggestions for improving TOMY products and services?

Lab Representative: The lead time was a bit longer than expected, as we needed units that could work in high elevation. However, TOMY was the first company to inform us that elevation was an important factor for proper sterilization. I’ve spoken with other labs that have problems in their sterilization process because their autoclaves were not adjusted for higher elevation, and I don’t think they factored that in. TOMY’s awareness of that detail made a big difference in our experience.

“TOMY’s awareness of elevation made a big difference in our experience.”

The Results: Efficiency & Confidence

The team at the craft yeast laboratory finds the TOMY SX Series Autoclaves to be a valuable tool for saving time and ensuring the high level of sterility required for yeast quality control. The deep chamber design allows for larger loads per cycle, maximizing efficiency. Easy to operate and low maintenance, the SX Series is a perfect fit for fast-paced, high-performance environments.

  • Deep chamber design allows larger loads per cycle
  • Overnight runs free up staff time
  • 7+ years of reliable use with minimal maintenance
  • Improved sterility and consistency for yeast production

Ready to improve sterility in your brewing or lab?

References:
Maicas, S. (2020, July 28). The Role of Yeasts in Fermentation Processes. Microorganisms. Link
Ciont, C. et al. (2022, Sep 3). Beer Safety: New Challenges and Future Trends within Craft and Large-Scale Production. Foods. Link
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