MARIA TOUTOUDAKI/GETTY IMAGES Have you noticed wine bottles come with an indent at the bottom? Sip back and relax as we explain what that indent means. There’s so much to learn and know about wine. While there are a plethora of wine types are grape-growing regions, one thing that most wines have in common is an indent at the bottom of the bottle of wine. Grab a glass of vino while we distinguish between myth vs. fact, and what that indent at the bottom of a wine bottle really does for wine. By the way, these are our picks for the best wine delivery services.