How much spaghetti to feed 90 people?

The amount of spaghetti required to feed 90 people depends on the serving size and the desired amount of leftovers. One possible calculation as a guide would be:

1. Determine the serving size per person: For a standard portion, consider 1/2 pound (0.23 kilograms) of uncooked spaghetti per person.

2. Multiply the serving size by the number of people: 0.23 kg/person x 90 people = 20.7 kg or approximately 21 kilograms.

3. Allow for some extra spaghetti to account for variations in appetite and leftovers. An additional 10-20% is often recommended, so add 2-4 kilograms to the calculated amount.

4. The total amount of spaghetti required is approximately 23-25 kilograms (50-55 pounds) of uncooked spaghetti.

It's important to keep in mind that the exact amount may vary depending on the preferences of your guests, the type of pasta dish you are preparing, and any side dishes that will be served. It is always a good idea to have a bit extra spaghetti just in case, and you can always use any leftover cooked spaghetti for another dish or freeze it for later.