How much sherbet frappe' for 300 people?

To serve sherbet frappe for 300 people, you would typically plan for about 4 to 6 ounces per serving. This means you would need approximately 75 to 100 quarts of sherbet frappe in total, depending on how generous the servings are and if it's part of a larger menu. It's always a good idea to have a little extra on hand just in case!