How Oculyze yeast cell counter works? Watch video demo!

Five minutes in the lab
can be more important
than five days in the field

Worldwide shipping available from our online store

Five minutes in the lab can be more important than five days in the field

Worldwide shipping available from our online store


Oculyze Fermentation Wine

Oculyze offers a smart, technology driven solution to the age-old problem of manual yeast counting and is now automating yeast analysis for hundreds of customers in over 40 countries.

Oculyze Fermentation Wine (FW) combines a 400x optical magnification with cloud-based image analysis software to enable you to accurately, easily and instantly analyze yeast concentrations onsite before and during the fermentation process. No special expertise or training is required.

Yeast cell counter is a very small investment to ensure your vintage achieves the potential of your grapes. You can’t control the sun or the rain, but you can control your fermentation.


Key Features

  • Oculyze FW helps improve quality and consistency in your wine-making process

  • Concentration and viability analysis in less than one minute

  • Quick and easy to use and delivers accurate and immediate on-site results

  • Assists winemakers understand the progression of their fermentation so they can identify and rectify problematic fermentations at the earliest possible stage

  • Automated warnings will automatically interpret the data and warn you of potentially stuck/sluggish fermentations – more information here

  • Your own personal wine consultant with Oculyze FWC


Viability & concentration in under a minute

We analyze the same volume as in a counting chamber (hemocytometer) but are 10 times faster and have no human error. Additionally, yeast viability is determined by differentiating between live and dead cells with methylene violet staining.

10x faster & more accurate than traditional methods

An integrated separation of clumped cells allows an accurate analysis; budding cells are automatically identified and provided as a separate value.

Automatic storage and backup

Our data management system allows you to access all of your yeast concentration and viability results. Review your analysis history from anywhere, anytime.

Mobile & tablet compatible

View and analyze your measurements from any connected device. The web app allows you to generate customized reports, view historical data, track your yeast over time and increase statistical accuracy by creating averages of different measurements.


Oculyze FW

Oculyze FW automated cellcounter was designed specifically with and for vintners. The automated yeast counting system determines concentration and viability helping winemakers to control their yeast by increasing reproducibility and removing human error. and it does so for a price well below the competition.

The Oculyze FW is a small investment to ensure your must reaches its full potential and significantly more affordable than benchtop cell counters.

Are you interested in downloading our cell counter market comparison?

Request information

Learn how to prevent stuck fermentations with
Oculyze Fermentation Wine Consultant!

Learn more here!

Additional features

Methylene violet in wine fermentation

You can choose between Methylene Violet and Blue for your viability measurements. We send methylene violet with every purchase. Methylene Violet can offer advantages; it performs better in growing phases of yeast cells (i.e. exponential and stationary) as well as for cultures with low viability and totally dead cultures.

Sharpness indicator in wine fermentation

This feature improves image quality and helps guide you to find the sharpest possible image. As you begin your measurements and turn the microscope knob, you will see the sharpness indicator changing values, once you have found the highest value possible – you’ve found your sharpest image and you’re ready to capture!

Manual Counting

Oculyze FW includes the option to manually count your yeast. This function adds a counting grid to your yeast images to mimic a hemocytometer/Thoma Chamber. This also affords you the opportunity to see what other microbes are in your must!

Discerning Cells

The Oculyze analysis will report on the varying sizes of your yeast. In addition, the algorithm will also identifying the percentage of cells that are budding which can be an indication of good yeast health as well as the stage of fermentation. Finally, Oculyze analyses can identify clustered cells, a task most automated cell counters struggle with.

Do you have already a laboratory microscope and wish to automate your analysis?
Check our Microscope Digitalization: Quick Guide to get started!
Learn more!

Automated yeast analysis for wine fermentation
without the high price tag

Starting at 999

Suitable for Large Wineries

Unlimited Pro

  • Prepay unlimited analysis for 12 months
  • Get the microscope for free!

Suitable for Moderate Wineries Most Popular!

500 Analyses

  • Prepay for 500 analyses
  • Get the microscope for half price!

Suitable for Small Wineries

Oculyze FW

  • Oculyze Fermentation Wine microscope
  • 15 FREE analyses!
Please send me more information

What is included in every fermentation wine (FW) package?

  • 1 Measuring cylinder
  • Methylene violet 10ml
  • 10 Pasteur pipettes
  • 10 Reaction containers
  • 5 Cleaning cotton swabs
  • 2 Sample chambers
  • 3 Plastic syringes
  • 1 Cleaning bellows

Online Store
  • Oculyze microscope
  • Transport box

Thoroughly tested

“The results of the cell counting with the Oculyze system are very closely comparable with those obtained using a Thoma chamber… The Oculyze system does not require a laboratory microscope or trained staff… The Oculyze system is faster due to the automated measurement and analysis.”External validation by the Research and Teaching Institute for Brewing in Berlin (VLB)
Complete report as PDF

Gold Medal winner at Intervitis Interfructa Horitechnica (IIH) 2018

Oculyze was awarded the prestigious Gold medal for its enhanced technology at the 2018 IIH held in
Stuttgart, Germany.Winner: Innovation Prize 2018

Looking for more information?
Click one of the links below.

Article: Oculyze in practice
Click here
Article: Stuck and Sluggish Fermentations and the Canary in the Coalmine
Click here
Article: Yeast monitoring helps to reach the full potential of wine
Click here
Article: Viability and Vitality in
Click here