Its not rocket science or needs exact measurements.
I hope you don't take offense but while I agree with you that it is not
Rocket Science, it
IS science, and you only don't need exact measurements if you're erring (usually SIGNIFICANTLY erring) on the side of caution. Once I know what is minimally safe I'll feel comfortable throwing a batch together like anybody else, but without the knowledge of what makes something safe I'm hesitant to deviate from recipes too much. I had similar issues finding a safe "formula" for beef jerky. Due to NEVER being able to definitively get an answer for a safe formula (i.e. amount of sodium/cure vs dehydrating temp vs shelf life vs % moisture content left after drying) I decided to just stick with commercial jerky cure and use their directions and then add whatever spices/flavors I want. "We've never been sick" isn't something I'm willing to hang my hat on. (In fact, some recipes I saw people saying this about, I am fairly confident would make people sick if they didn't eat them within a short time...so if we made that recipe and gave it away as gifts...) Actually I found the Nesco brand Hot & Spicy, Original, & Teriyaki (variety pack) to be so good, I'll probably just keep using that in the future.
I've heard some people put them in the vinegar shell on and let the shell dissolve, I peel mine. If you want to peel them add baking soda to the water during boil and it makes it easier.
I haven't heard baking soda before, but can believe it would help. What I can tell you from my own experiments is the older an egg is, the easier it will peel with traditional cooking methods. HOWEVER, if you have a pressure cooker, pressure cooked (steamed) hard boiled eggs peel super easy every time, regardless of age! (My wife can fill in the details if anybody is interested...it takes a few tries to tweak to your exact liking, but once you get it it's set) We prefer this method when we're making food for people because it doesn't require adding anything to the water, OR letting the eggs get old. Also, it is extremely quick :-)
I'm thinking Vinegar is the only requirement for a "safe" egg as mentioned by LouisPritchard. Is this the general consensus? I have found that the water added isn't supposed to change the flavor, or safety but helps reduce the "hardness" of the finished egg, so I'll stick with that. I DO plan to heat up the brine, in addition to maybe helping with safety, it is supposed to help the eggs from getting too hard. My plan is to make a batch starting out with 50-50 water-vinegar ratio, slow boiled for 5 minutes poured over the eggs, and tweak from there to my taste.