L-WIN – The Liv-ex Wine Identification Number – serves as a universal wine identifier for the wine trade. L-WIN is a unique seven-digit numerical code that can be used to quickly and accurately identify a product.

All wine trade participants have different naming conventions for their products, depending on which parts of the wine label they feel are the most important. L-WIN allows wine companies to keep their preferred naming system, while introducing a new universal code.

Read 'L-WIN: a common language for fine wine' by Liv-ex's Head of Data, Neil Taylor, to learn more about the role and value of universal identification in the fine wine industry. (Other languages versions are available: French and Chinese).

Each L-WIN refers to the wine itself (i.e. the producer and brand, grape or vineyard). The first six numbers of the code represent each wine’s unique identifier, while the seventh number is a “check digit” that minimises input errors.

Additional information, such as the vintage, pack and bottle size can be appended to the L-WIN in a standard format. (Alternatively, this data can be added as separate fields.)

The L-WIN standards for including additional data are:

  • L-WIN: 1234567 – Example winery, Cabernet
  • L-WIN-11: 12345672012 – Example Winery, Cabenet, 2012
  • L-WIN-16: 1234567201200750 – Example Winery, Cabernet, 2012, 750ml bottle size*
  • L-WIN-18: 123456720121200750 – Example Winery, Cabernet, 2012, 12 bottles of 750ml

*All bottles sizes are expressed in millilitres in a five digit format.