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03/04/2023

Weathering: What it is and how to prevent it.

As glass packaging suppliers specialized in the the spirits, beverage, and food industries, some customers have asked us what is weathering, why it occurs, and whether it affects the composition of the content.

What is weathering?

In the context of glass bottles, weathering refers to a natural process that occurs in glass packaging, in which the formation of calcium carbonate and/or sodium carbonate salts can be evidenced. This formation is due to the reaction between the ambient moisture and sodium or calcium, which are elements that are in the glass formulation.

This condition can be visually perceived as a slight cloudiness on the inner wall of the glass container, up to the formation of crystalline structures of salts.

Preventing weathering

For BPS Glass, it is essential to guarantee the quality of our products, which is why our main recommendation is to implement storage conditions that promote good ventilation.

Three tips to prevent weathering are:

-Do not expose your stock of containers to humidity: If there are high levels of ambient moisture, there will undoubtedly be a greater probability of weathering occurring.

-Store your glass containers in a fresh place: Fans that help force the circulation of air will be a good tool to mitigate the humidity conditions that may exist in storage.

-Avoid accumulation of water in the storage area: Areas with leaks or relative moisture increase the risk of weathering.

The level of weathering in a glass bottle may vary depending on the quality of storage.

What can I do with bottles that have weathering?

We also recommend that customers have a rinsing system in their filling process, which helps to remove this condition due to the soluble nature of the calcium carbonate and/or sodium carbonate salts.

The prevention of weathering is important to maintain the visual appearance of the bottles and avoid possible negative perceptions from consumers, but it does not affect the quality or safety of the products in any way.

For more information contact us [email protected]

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