Hosting a Champagne tasting at home can stay relaxed. Chill bottles to 8 to 10...

https://wiki-legion.win/index.php/How_Do_I_Transport_Champagne_to_a_Dinner_Without_Warming_It%3F

Hosting a Champagne tasting at home can stay relaxed. Chill bottles to 8 to 10 C, set out tulip-shaped glasses, and pour modest tastes. Simple comparisons help guests notice what they like, with no special gear or formal lesson needed.