article_snippet: Preservative 220 sulphur dioxide is in the Guilt-free Tenders salad dressing.
article_snippet: Preservative 220 sulphur dioxide requires a public warning on any ingredient label due to asthma concerns.
article_snippet: their website currently claims incorrectly that there is no sulphite present.
article_snippet: Preservative 220 sulphur dioxide contains this ingredient which is artificial.'