Features of the results of conductometric studies of apple juices Svetlana Nikulina, Natalia Fateeva, Evgenia Cherekanova, Tatiana Verizhnikova, Ekaterina Smirnova, Alexander Vasyukov and Irina Nazarova E3S Web Conf., 392 (2023) 01014 Published online: 06 June 2023 DOI: 10.1051/e3sconf/202339201014