As an expert sommelier and brewer, I can certainly help you determine how many bottles of champagne you would need for 45 mimosas. The general rule of thumb is that a 750ml bottle of wine can yield between 6 to 8 mimosas.
To calculate how many bottles you would need for 45 mimosas, we can assume that each guest will have around 2 to 3 drinks. Let's take the average of 2.5 drinks per person.
If we divide the total number of mimosas (45) by the average number of drinks per person (2.5), we get 18. So you would need to make 18 sets of 2.5 drinks to accommodate all your guests.
Now, let's calculate how many bottles of champagne you would need for those 18 sets. If each set of 2.5 drinks requires one bottle of champagne, then you would need 18 bottles in total.
Since each bottle yields between 6 to 8 mimosas, let's take the average of 7 mimosas per bottle. Multiply the total number of bottles (18) by the average number of mimosas per bottle (7), and you get 126 mimosas.
So, to make 45 mimosas, you would need approximately 6 bottles of champagne.
It's always a good idea to have a few extra bottles on hand, just in case. Additionally, it's important to take into account the preferences and drinking habits of your guests. If you know they are particularly fond of mimosas or if they tend to drink more, you might want to consider increasing the number of bottles accordingly.
Remember, it's better to have a little extra than to run out during your event. Cheers!