Letter Re: Salt Storage Advice

How would you recommend that I store the many salt blocks I have been stocking up on  (cattle type – various kinds of salt and mineral blocks)?
I was out in the shop today and did a brief walk through and noticed a bunch of moisture (water/liquid) developing around the blocks. Some of them are noticeably deteriorating. A few are on card board, others are stacked on back of a parked trailer. Am I setting myself up for disaster? Will these salt blocks eventually corrode the metals nearby? Where is the best place to store them? 
I have a two bedroom farm house from the early 1920’s. There is literally no more room for supplies that do not have to be in the home.
While I am on the topic, my order of 500 plus pounds of culinary salt is waiting for me to put up. They are in bags now. I have three large plastic drums coming soon (40-50 gal size). I plan to put the salt in them. Do I need to find room in the house to keep them? There are a lot of moisture troubles/humidity where I live in northwestern Kansas. 
BTW, in case you are wondering why salt, — well, it’s a God thing I guess. I felt a very strong feeling to purchase large quantities. I now have pink salt (Himalayan), iodine salt, and sea salt. 
I don’t want this to happen! (Advance the player to 2:40 if you are in a hurry).
Thank you for your time, – Tess of Kansas

JWR Replies: Yes, storing salt can be a challenge, but nothing insurmountable. Salty air (salt molecules suspended in water vapor) can be controlled by keeping humidity low in your storage area and by keeping your salt supplies dry and airtight. Use sealed plastic containers as much as possible. But if you lack the requisite containers, then at least use multiple wraps of plastic around all salt blocks, bags, and boxes. And regardless, always store your salt in a separate building from your tools, hardware, and canned goods. (Id est, store your salt storage buckets in a wooden cabinet in your hay barn, not in your garage or shop.)