Isi kantung yang dapat ditutup, yang berukuran makanan ringan atau roti lapis, dengan air hingga setengah (atau sepertiga) kantung. Masukkan satu kantung ke dalam setiap sepatu. Siapkan tempat yang cukup dalam lemari pembeku. Masukkan sepatu ke dalam lemari pendingin. Keluarkan dari lemari pendingin pada keesokan paginya. Cobalah kenakan sepatu tersebut. Gunakan kondisioner sepatu kulit atau sabun khusus untuk membersihkan bahan kulit (saddle soap).

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Don't overfill or the bag will burst open when being prodded or when frozen. Then seal tightly.  Check that it is free of holes first! Do one bag for each shoe. Be careful not to squeeze too hard, lest the bag burst open and soak the shoe. Push the bag into the nooks and crannies of the shoe as far as possible. The area needs to be large enough to accommodate your shoes. Make sure that nothing else in the freezer will lean against the shoes. Anything touching the shoes could leave a stain or cau