Does Alcohol Need Testing?
Bottles of alcohol are not typically the first products that come to mind when considering the need for accelerated weathering and grey scale testing. However, the varying lengths of time bottles are stored, whether opened or unopened, and the conditions in which they are kept, can significantly impact the taste and quality of the alcohol inside.
Does Alcohol Go Bad?
While alcohol does not necessarily go bad, it can undergo changes over time depending on storage conditions. Factors such as light, temperature, and even the material of the container can influence these changes. Some alcoholic beverages, like whisky, are expected to evolve with time, while for others, such as vodka or gin, changes are less desirable.
Does Sunlight Affect Alcohol?
Sample product testing at Impact Solutions included accelerated weathering tests on glass bottles to evaluate how long alcoholic products can remain unopened on shop shelves or in consumers’ homes without their quality being affected. For example, we conducted accelerated weathering and grey scale tests on coloured gin in clear bottles to assess the effects of sunlight and temperature on both the colour and taste of the product. These tests ensured that any potential loss or change in colour would not negatively impact the flavour.
How Do Grey Scale Tests Work?
Grey scale tests, performed to standards BS EN 20105-A02 and ISO 105-A02, are used to measure colour changes over time. During testing, samples are exposed to accelerated weathering conditions for up to 1,000 hours. At various intervals, the samples are compared to an unaffected control to assess any differences. In one study, slight fading of the product’s colour and label was observed. This fading, though subtle, can have tangible effects on the flavour profile of the drink, such as diminishing fruity notes while intensifying the alcohol’s flavour.
Tips for Preserving Alcohol Quality
To maintain the quality of alcohol, it is best to store bottles in a cool, dry place, away from direct sunlight and heat sources. Following the storage instructions on the label can help prolong the ideal flavour and appearance of the product.
How Impact Solutions Can Help
At Impact Solutions, we specialise in a variety of weathering and grey scale tests in our state-of-the-art weathering laboratory. Whether you need to assess the long-term stability of packaging or the impact of environmental factors on your product, we have the expertise to help. For more information, contact us at +44(0)1324 489 182.
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