There are some vineyards with such a good reputation, that you do not buy actual existing wine but you buy (reserve) the wine to be made few years in the future. Then they are stored by these purchasers for the next few years and then sold once again to the final customers on auctions. This is one of the ways people make money by investing in alcohol.
Maybe it would be worth to give a try (even for purely academic purposes), to make a bet like this:
1. Buy XX bottles of such wine for BTC (even if the wine would be stored at someone's else wine cellar)
2. Sell the wine to these final customers on auction
3. Compare the final value of the wine and BTC.
The process you are mentioning (reserve the wine for the future) is called "En primeur" of "wine futures". It is a method of puchasing wines and invest before the wine is bottled.
It is very popular in Bordeaux area and this service is provided by Bordeaux Negociant (you can't buy Classified Growths at the Estate directly).
Purchasing to a Bordeaux Negociant ensures traceability and pristine strorage conditions, which are crucial in the wine industry.
Our companies (Lasserre & Papillon for B2C and
btc-wine.com for B2B) are the only one Bordeaux Negociant to accept crypto currency as payment.
Fine wine are a great asset to diversify you portfolio into a tangible one (It could hedge crypto's market fluctuation as a tangible USDT!)