Oh, that's a good question! 1. After opening the wine bottle, you can enjoy it if you store it well for 2-3 days. As you said, there are some changes that the first and last drinkers feel, but I don't think they're worried because it's within the range where they can enjoy their drinks. 2. I think the difference in the taste of wine in a wine glass is minimal. You don't have to worry too much about the glass:-) Any glass you drink when you're casual. However, paper or plastic absorbs scent due to its nature, so it's good to use glass material.
