The Premium and The Benchmark – better and more cost effective alternatives

The Vinkem RLT is Pasteurised – WHY?

The crude extract of grape skin invariably contains ( or more accurately is contaminated with ) spoilage yeasts. The pasteurisation process is effective in "knocking out" such yeasts.

These yeasts do not pose any food safety issues ( they are not harmful to humans ) but can seriously affect the quality of the final food or drink. For example such yeasts can cause unwanted fermentation. These yeasts are classed as atypical with the particular yeast Zygosaccharomyces Bailii being the most renown. There are other related yeasts that can cause problems also eg; Rouxii and Bisporous.

Unfortunately these yeasts are both osmophilic and spore forming and are renowned for being particularly difficult to remove and destroy. The only truly effective process to achieve this is by thermal destruction ( pasteurisation ). Other processes such as filtration will remove a certain quantity but still falls short of the mark and will not guarantee commercial sterility.

Experience shows that a routine yeast count can give misleading negative results, since these yeasts seem not to proliferate under such conditions. Our producer has developed a specific osmophilic yeast count protocol combined with a fermentation test and microscopic examination. Many years experience has shown that this strict testing regime is the only truly method of determining product quality.

The pasteurisation process has been developed to deal with yeast problems. A double pasteurisation results in the OFO339 – VK Premium RLT. This is a costly and reductive process. To keep the product at an even more cost effective level the producer has introduced a Single Pasteurised Process, which meets the exacting standards already mentioned. This results in the OF1057 - VK Benchmark RLT.

The OF1057 Benchmark is a new Product offering unsurpassed standards with preferred pricing and a Choice for the Australian Wine industry.

The Premium and The Benchmark are equal in intensity!

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