I think canned corned beef is 1000mg per 100g, which is 1% salt, and 2% salt once dehydrated. Not too bad if eating say 200g per day and it's your only source of salt, but I would suggest you don't need to add any more Insta Cure. I would either start with fresh brisket and add my own Insta Cure, or just salt, or use canned Corned Beef and dehydrate it without adding any extra. I would also suggest 1g of salt per 100g of beef is more than enough, especially if you will dehydrate it. Even when hiking you should limit your salt intake. Figure out how much you need, then figure out what foods and drinks to get the salt from. I use jerky and skim milk as my only sources of sodium. Milk has it naturally. The jerky is a convenient place to store the extra salt you need because it serves the dual purpose of helping to preserve the meat and to give you the extra salt you need, and you can control your salt intake by chewing on jerky or adding it to soup on the days you need it, and using less on the days you don't. Skim milk I more or less have the same every day, mostly in my chai style spiced tea but also some with oatmeal.