It is also noted for ready-made sandwiches produced from such bread and reindeer meat, which was introduced as a product in the 1960s, under the name renklämma.
Together with his wife Hilda Nordström, he settled in Älvsbyn and began baking bread for the community's inhabitants and water navvies, who built log driving paths in the area.
His youngest son Gösta Nilsson, together with his wife Greta Stålberg, ran a café in Älvsbyn and after a few years began experimenting with Tioöreskakan and called it Älvsbykaka.
His wife Greta spread butter and put smoked reindeer roast on the bread and froze it, to be able to quickly thaw it and serve the guests.
Gösta and Greta Nilsson decided to start a special bakery for the soft rye cake, which was then named Polarkaka and the company Polarbageriet AB was formed in 1972.