Example usage of .Except in c#

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DistinctTest
{
    class Program
    {
        static void Main(string[] args)
        {
            var allIngredients = new string[] { "Kokosmælk", "Karry", "Tomatpuré", "Mælk", "Vand", "Ris", "Salt", "Peber" };
            var selectedIngredients = new string[] { "Kokosmælk", "Karry", "Tomatpuré", "Vand", "Ris" };
            var notSelectedIngredients = allIngredients.Except(selectedIngredients);
            Console.WriteLine(string.Join(", ", notSelectedIngredients)); // Mælk, salt, peber
        }
    }
}