When running Vintessential™ test kits, the acceptable range for a standard is typically within ±10% of the certified value.
Each standard is intentionally set within a practical, workable concentration range — reflecting real winemaking conditions.
For example:
Standards are designed to provide useful, production-relevant insight — not just theoretical values.
Running a standard with every batch verifies:
This transcript has been lightly edited for readability and to correct obvious automatic-caption errors. Product and method information should be checked against current Vintessential documents before use.
0:00 What is the acceptable range for a quality-control standard?
0:02 Vintessential generally works within 10 per cent of the certified value. For glucose and fructose kits, the standard represents a wine that has not completely finished fermentation.
0:11 The malic acid standard is approximately 0.2 g/L. This gives the winemaker a useful indication of where a ferment may be during the fermentation process.
0:20 The standards are designed to sit within the workable range and provide useful information for winemakers.
