How much mayonnaise needed with 25 pounds of potatoes to make a salad for 100 people?

It's impossible to say exactly how much mayonnaise you'll need without knowing:

* The recipe: Different potato salad recipes use different ratios of mayonnaise to potatoes. Some might be very creamy, while others are lighter.

* The size of the potatoes: Are they small new potatoes, or large baking potatoes? This will affect how much mayonnaise they absorb.

* The size of the servings: Are you planning on serving large scoops or smaller portions?

However, here are some general guidelines:

* Start with 1 cup of mayonnaise for every 5 pounds of potatoes. This is a good starting point for a creamy potato salad.

* Adjust based on your preference and the recipe: If you like a lighter salad, use less mayonnaise. If you like it very creamy, you can increase the amount.

Example:

If you have 25 pounds of potatoes, you could start with 5 cups of mayonnaise (25 pounds / 5 pounds per cup = 5 cups).

Important Tip: It's always better to start with less mayonnaise and add more if needed, as it's difficult to take it out once it's mixed in. You can also taste test the salad as you go to see if it needs more mayo.