[27] Unlike dipping tobacco and chew, most snus currently would not undergo the fermentation process, but is alternatively steam-pasteurized. While steam-pasteurization is remarkably complicated, it's the benefits of inhibiting The expansion of microbes that aid the development of tobacco-unique nitrosamines, while preserving the desired texture and mouthfeel from the snus. https://moodjhomedia.com/story1503407/the-best-side-of-snus