From their website (https://volcanichillswinery.com/pages/faq, retrieved October 2020)
"Are your wines Vegan?
"Our Rose and Igneous Vineyards branded wines are not vegan, but all of our other wines are vegan, and a V symbol can be found on the back of our labels to indicate this. Older vintages may not have this symbol, but we have added the easy to spot Vegan symbol to let everyone know.
Volcanic Hills White Wines
Vegan
This product is listed as vegan friendly.
What the company told us
Correspondence on record, with the date of each entry.