Identify the correct cuvée, understand the fields and distinguish producer descriptions, technical figures and bottle labelling.
Identify the bottle first
Start with producer, exact cuvée name, vintage and bottle size. An undated sheet may describe a range rather than your bottle. Compare the label photograph and document and record any version date. Ask the seller to confirm that the figures concern the offered lot. Similar names can refer to different blends or maturation choices, so matching the identity comes before interpreting numbers.
Keep units beside figures
Sugar in g/L is not an alcohol percentage. Blend percentages do not describe vineyard yield. Always record field name, value and unit together. Compare sugar with the stated style without claiming to predict your precise perception. Write “not supplied” where data is missing rather than inferring a number from the grape, region or another cuvée. This keeps comparisons honest and repeatable.
Separate information from requirements
A producer sheet does not replace the legally applicable label. Consult the bottle and its associated electronic information where available. Requirements vary by market, category and product; an international standard is not automatically the same obligation everywhere. For wines sold in France, the DGCCRF guidance provides a starting point. Check the particular situation before treating an absent field as a compliance problem.
Build a checkable comparison
Make one column per wine and rows for identity, origin, blend, maturation and available measurements. Add questions rather than copying the entire marketing description. Separate promised aromas from your own observations. Ask whether the sheet matches the photographed vintage and what size is delivered. Keep the link and consultation date so you can identify the document after it is updated.