A Champagne tasting at home needs little more than chilled bottles and a plan....

https://shed-wiki.win/index.php/What_Temperature_Should_Champagne_Be_Served_at_for_a_Tasting%3F

A Champagne tasting at home needs little more than chilled bottles and a plan. Serve at 8 to 10°C, pour small tastes, and give each wine a moment before comparing. These simple steps keep the evening relaxed and make the differences easier to notice.