March 1, 2017
Seasonal Winemaking Strategy - Stabilize Potassium Tartrate
If you are thinking about cold stabilizing your wines, this newsletter is for you. LAFFORT® offers revolutionary solutions for stabilizing potassium tartrates (KHT) in white, rosé, and red wines. Both MANNOSTAB® and CELSTAB® work to inhibit the advancement of potassium bitartrate crystallization - by binding to the surface of tartrate molecules at multiple sites, therefore blocking the sites necessary for crystal growth.
CELSTAB® is a highly purified carboxymethyl modified vegetal-origin cellulose polymer, with a low degree of polymerization and viscosity. Its 10% liquid (100g CMC/L of solution) formula makes it easy to incorporate into wine. Celstab® is recommended for use in white and rosé wines.
MANNOSTAB® is the only mannoprotein naturally present in wines with a potassium bitartrate stabilization property for all wine types. This specific mannoprotein, designated MP40, is enzymatically extracted from yeast cell walls by a patented process (patent n°2726284), which guarantees and preserves the stabilizing capacity of the MP40 mannoprotein regarding potassium bitartrate. precipitations.
• Stabilization – will inhibit potassium bitartrate crystallization.
• Preserve Wine Quality – no loss of acid or raising of pH.
• Sustainability – no waste, no water and no energy usage.
• Saves Time – instant stability with one easy addition 48 hours before bottling.
** DIT% Conductivity Test (Degree of Tartaric Instability) - Pre Treatment Required Analysis
This 4 hour test measures the instability in the wine before treatment. Wines must be less than 25% unstable for treatment with CELSTAB® and less than 20% unstable for treatment with MANNOSTAB®. MANNOSTAB® dosage is determined by the result of the DIT% test. CELSTAB® is a constant dosage for all applicable wines.
ISTC 50 Test - Post Treatment Confirmation Analysis
This is a modified conductivity test, taking into account all the ions still in solution with Celstab® or MANNOSTAB® treatment. This is the recommended test to assay CELSTAB® and MANNOSTAB® effectiveness in your wine. You want to see < 4 μS (micro siemens) change from minute 40 to minute 120 in a passing ISTC 50 test.
For more information on how to prepare your wine and how to use these products, visit the links below:
Preparing Wines for Using CELSTAB®
CELSTAB® Checklist
MANNOSTAB®Procedures
MANNOSTAB®checklist
Order CELSTAB and MANNOSTAB®direct from our main office in Petaluma,CA laffortusa@laffort.com 707-775-4530
