Sulphur compounds are used in wine as preservatives in order to avoid bacteria in the wine storage vats from causing spoilage. These compounds can stop wild yeast and bacteria from spoiling the wine and they can stop the wine from oxidizing. However, these sulphur based preservatives can cause issues and allergic reactions in some people. Sulphur dioxide 220 is one of these preservatives. It is often added to wine that you can buy in Canada. It...
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