Definition_of_delay

using System.Data;

namespace Definition_of_delay
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Storehouse storehouse = new Storehouse();

            storehouse.ShowStews();

            storehouse.FindDelayStew();

            Console.WriteLine();

            storehouse.ShowStews();
        }
    }

    class Stew
    {
        public Stew(string name, DateTime dateProduction, int expiration)
        {
            Name = name;
            DateProduction = dateProduction;
            Expiration = expiration;
        }

        public string Name { get; private set;}
        public DateTime DateProduction { get; private set;}
        public int Expiration { get; private set;}
    }

    class Storehouse
    {
        private List<Stew> _stews = new List<Stew>();

        public Storehouse()
        {
            _stews.Add(new Stew("Мясокомбинат Курганский", new DateTime(2020, 2, 27), 5));
            _stews.Add(new Stew("Главпродукт", new DateTime(2015, 8, 30), 3));
            _stews.Add(new Stew("Скопинский мясоперерабатывающий комбинат", new DateTime(2024, 3, 14), 2));
            _stews.Add(new Stew("Йошкар-Олинский мясокомбинат", new DateTime(2019, 4, 12), 1));
            _stews.Add(new Stew("Любимый дом", new DateTime(2021, 12, 3), 3));
        }

        public void ShowStews()
        {
            foreach (Stew stew in _stews)
            {
                Console.WriteLine($"Название - \"{stew.Name}\", дата производства - {stew.DateProduction.ToShortDateString()}, срок годности {stew.Expiration}");
            }
        }

        public void FindDelayStew()
        {
            DateTime today = DateTime.Today;

            _stews = _stews.Where(stew => stew.DateProduction.AddYears(stew.Expiration) <= today).ToList();
        }
    }
}