From their website (https://www.40knotswinery.com/Wines/All-Wines, retrieved June 2018)
"We are vegan and gluten free"
Brodie notes: "I was also there last weekend and confirmed with a representative, and it's listed on their labeling."
40 Knots Wines
Vegan
This product is listed as vegan friendly.
What the company told us
Correspondence on record, with the date of each entry.