По теме "простое варенье из айвы", нашел много полезного. Вот, делюсь ссылкой: <a href=https://eqa.ru/%D1%87%D1%82%D0%BE-%D0%BF%D1%80%D0%B8%D0%B3%D0%BE%D1%82%D0%BE%D0%B2%D0%B8%D1%82%D1%8C-%D0%B8%D0%B7-%D0%B0%D0%B9%D0%B2%D1%8B-%D0%BB%D1%83%D1%87%D1%88%D0%B8%D0%B5-%D1%80%D0%B5%D1%86%D0%B5%D0%BF%D1%82/>https://eqa.ru/%D1%87%D1%82%D0%BE-%D0%BF%D1%80%D0%B8%D0%B3%D0%BE%D1%82%D0%BE%D0%B2%D0%B8%D1%82%D1%8C-%D0%B8%D0%B7-%D0%B0%D0%B9%D0%B2%D1%8B-%D0%BB%D1%83%D1%87%D1%88%D0%B8%D0%B5-%D1%80%D0%B5%D1%86%D0%B5%D0%BF%D1%82/</a>