
Dear Valued Customers,
Welcome to the Third Edition of the Winechek Newsletter in October 2025 called Precision Matters.
We created this newsletter to keep you in the loop on all things analytical that impact the quality of your product and efficiency of your processes. Whether you’re a seasoned expert or just curious, we’ll bring you valuable insights, new resources on the website, and helpful content—straight to your inbox.
What to Expect
Spring brings warmer weather and many malolactic fermentations that have not completed may start due to a spike in the growth of lactic acid bacteria. Extended periods of time with limited SO2 increase the likelyhood of Brettanomyces bruxellensis. See below the offers to get your wines in-'chek'.
Brettanomyces bruxellensis - test 5 samples for the price of 4 in the month of October via PCR
SO2 measurement with discrete analyser or aspiration- test 10 samples for the price of 8 in the month of October
Quote SPRINGCLEAN_WINECHEK to access this offer.

Understanding Brettanomyces bruxellensis and the risk it poses can save your business thousands of dollars.
FURTHER INFORMATION
Brettanomyces bruxellensis - Fact sheet

Petiole testing can provide a snapshot of the nutrient status of the vine. Obtaining quantitative information on nutrient levels can assist in determining the effectiveness of fertiliser applications and also help identify the cause of any specific vine problems.
Turnaround time 5-7 working days.
What is Phosphorous Retention Index?
Phosphorous Retention Index (PRI) gives a direct measure of the phosphorus sorption capacity in soil. Phosphorous is not chemically stable in the water soluble form in the presence of soil. The absorption of phosphorous into the soil particles results in less phosphorus being available for plants. Conversely, soil that is unable to adsorb phosphorus may lose phosphate due to leaching in high rainfall areas.
The results of the PRI test can therefore assist in making better nutrient management decisions.
Turnaround time 5-7 working days (Available in select Winechek laboratories - please talk to your laboratory supervisor today about getting this tested)

Find out more about Soil PRI with our new fact sheet available on the WineChek website.
SPI FACT SHEET - NEW WINECHEK 2025

Are you unsure about the sanitation on your bottling line, in your winery or brewery or in your laboratory?
Microbial load can build up anywhere in the process but becomes of a critical nature at certain points in the process.
Bottling lines are the final check point for any beverage and making sure that there is a low microbial load is key to ensuring long term micro stability.
What can I do?