Fill the ice bucket
You are required to fill the ice bucket halfway with ice. It is recommended that you choose ice which is properly frozen. In order to make sure that the ice bucket has a below freezing temperature, you should liberally sprinkle it with coarse salt.
Cover the ice with cold water
You should cover the ice by pouring a sufficient amount of cold water in the ice bucket. Having done that, you can insert the champagne bottles in the ice bucket. Make sure that they are at the bottom of the ice bucket as it will help them chill faster.
Rotate the champagne bottles
In order to drain heat from the champagne bottles quickly, it is recommended that you rotate them in the ice bucket a few times.
A standard sized champagne bottle will need to be chilled for a minimum of 15 minutes if you are using salt in the ice bucket. However, if you have opted not to use salt or it is not available for some reason, chill your champagne bottle for 20 minutes. You can circulate the bottle or allow it to cool evenly by twirling the bottle every now and then.
Open the bottle and serve
You can now open your champagne bottle and serve. It is recommended that you put the bottle back in the ice bucket for five minutes after every 20 minutes at room temperature, as it will allow you to maintain the required temperature of champagne during consumption.