To make cider vinegar we need to start with a fully fermented dry cider with a minimum 5% alcohol content. Sulphur dioxide should not have been added for storage, because this will inhibit the conversion to acetic acid. Read more

Apple juice is in some ways more difficult to make than cider, and indeed it can scarcely be regarded as a traditional product at all. Until the recognition late in the 19th century that fermentation was caused by yeast converting sugar into alcohol, the difference between juice and cider was somewhat obscure and of little practical importance in any case. Read more