Precision Matters - June 2026

Dear Valued Customers,

Welcome to the June 2026 Edition of the Winechek Newsletter, called Precision Matters.

On the agenda:

1. Calcium instability – what you need to know and a new fact sheet
2. Vintessential new products – Quantum-MW and Calcium test kits
3. Technical article – Where does VA come from?
4. Technical article – Analytical checkpoints in sparkling wine production

WORRIED ABOUT CALCIUM INSTABILITY?

Calcium instability caused by excess calcium in wine can be devastating. Here’s what you need to know:

• Calcium tartrate is not cold sensitive. This means that a standard 72-hour test at 4°C is unlikely to precipitate calcium tartrate and indicate an instability.
• Standard cold stabilisation treatments, including CMC, polyaspartate and mannoproteins, are unlikely to prevent the formation of calcium tartrate.

Check out the fact sheet below for further information.

BACK TO BASICS – CALCIUM INSTABILITY IN WINE

NEW RELEASE — VINTESSENTIAL CALCIUM TEST KITS

Vintessential Test Kits is proud to launch Calcium test kits for both spectrophotometers and autoanalysers.

• 4A210 – Calcium test kit for spectrophotometers
• 4B210 – Calcium test kit for autoanalysers

NEW RELEASE — VINTESSENTIAL QUANTUM-MW

Model Wine Multi-Parameter Standard

Vintessential Test Kits is proud to launch Quantum-MW — a next-generation multi-parameter reference material designed for modern wine laboratories.

ORDER QUANTUM-MW AND CALCIUM TEST KITS

ANALYTICAL CHECKPOINTS IN SPARKLING WINE PRODUCTION

Technical article – January 2026

From vineyard to bottle, every stage of sparkling wine production relies on precision and quality control.

We’re excited to share our latest technical article, Analytical Checkpoints in Sparkling Wine Production.

Whether you’re producing Prosecco, méthode traditionnelle or carbonated sparkling wines, this article provides valuable insights into the role of analysis throughout production.

READ THE SPARKLING WINE ARTICLE

WHERE DOES VA COME FROM?

Technical article – May 2026

Volatile acidity (VA) remains one of the most important indicators of wine quality and microbial stability. But where does it actually come from, and what factors contribute to its formation?

Read the new Winechek technical article to gain a deeper understanding of the sources of VA and the practical implications for winery management and quality control.

READ WHERE DOES VA COME FROM?