Multiple questions on processing oat grains

I am having an incredibly difficult time finding clear information on oat processing. Most sites pussy-foot around critical issues.

I will not be kilning the oats which is done in industrial settings. Oats have lipid/oils that can go rancid and I do not know how this changes at different steps of processing.

I am planning an oat field in my yard which I will process . I will be eating the oats.

1) If I harvest and thrash oats (to remove the husk) the hull will remain. How long will oats in this stage last in storage?

2) If I dehull the oat the oat will now be an "oat groat". How long will oats groats last at this stage in storage?

3) If I roll the oat groat to create rolled oats how long will rolled oats last at this stage in storage?

4) What manual techniques are there to dehull oats to create oat groat? How did medival societies do this? I am going to imagine a sort of grinding wheel which would dehull the grain to create "oat groat". The hulls and oat groat will be mixed so it will have to be processed again by dropping over a fan to seperate the groat from the hull.

5) livestock oat feed still has the hull on it. I do not know if these are heat treated. Will livestock oat feed germinate and usable as my oat seed for seeding my field?

6) If I decided to just to just dehull the livestock oat feed and eat this directly, is this safe? Ive called granieres, companies that manufactuer and livestock stocks, know one can comment or knows.

Sidenote: I eat about >150lb rolled oats per year

... Hello!  

- great questions; been down that same road.... apparently the ends of the oats are 'clipped' off which then allows the hull to be rolled/beaten loose (inedible! - like vhewing a fingernail; they are Tough).... oat clippers are specialized units; the cheapest one found was 10k new (China).

.... oats may have been toasted to help remove the hull (destroys oil quality) - also there are 'hull-less' oat varieties (low yields).

.... 'brimstoned groats' (sulphured) were provided in lifeboats (even rats left them alone).

.... finally gave up and bought groats in 50 lb bags at the feed store; they also had whole, rolled, and steel cut for the same price ($18 per bag) - all were delicious (fed the whole oats to the chickens).

.... ended up bypassing oats in general; low nutrition like most grains - do enjoy them occasionally as oatmeal (steel cut - yum!).... mix in some d.e. to lengthen storage (bugs love them)

.... You are correct; the ancients Must have had a way to deal with the hulls.....       :b

I planted some hulless oats to test. will see how they yield. Dont know how long they will store tho. Will simply thrash, then store them in a container.