Would you be surprised if we said the best way to find out was to taste SIP certified wines for yourself and decide? Didn’t think so. Wine is a very personal, subjective experience. You may like a wine that your friend simply doesn’t care for. Frankly, there is nothing about sustainable wine that guarantees it will taste better. BUT, and it’s a big but, it’s often said that great wine is made in the vineyard, and SIP certified wines come from vineyards that have received great care and attention. You make the call.