Tasting Notes Traditionally, Balsamic Vinegar is made from the Trebbiano grape, and is produced in and around the town of Modena in Northern Italy. The grape must is cooked and filtered, and then aged in a "Battery" of barrels made of chestnut, cherry, ash, mulberry juniper and oak. Over the years the wood imparts it's flavour to the vinegar and the older the vinegar, the more intense the flavours become. This 20 year old style from Harvey Nichols will be naturally thick, aromatic and intense in flavour, requiring only a few drops to lift any salad or sauce. Product Details Allergens: Sulphites Full Ingredients Cooked Grape Must Wine Vinegar ( Sulphites ). Allergy notes: sulphites .