A Champagne tasting at home doesn’t need a long guest list or specialist gear....

https://emmasbrilliantinsights.rivetgarden.com/posts/should-i-buy-champagne-based-on-brand-reputation-alone

A Champagne tasting at home doesn’t need a long guest list or specialist gear. A few thoughtful choices make the wines easier to compare: chill them to 8 to 10°C, pour small samples, and give each glass room to breathe