Hi there folks, This is my first post of any kind on here. I am trying to figure the site out. I am hardly computer literate and even less chicken literate. I joined a while back because i was told that this is a great place to network for useful info Re: good chicken rearing for productive egg laying. My beautiful wife and daughter are intolerant of store bought eggs and we found out that we can raise our own chickens for fresh eggs. we live in the city and are raising them in a coop my wife found plans for online. The coop turned out pretty darned nice (if I do say so myself) and we started raising the chicks into adulthood in the house as soon as they were large enough I put them in the backyard coop. (****** near ruined my guest bedroom.) Lol. So any tips, hints, tidbits of chicken wisdom will be greatly appreciated. I have a question Re: feeding their shells back to our cluckers for calcium supplement. My daughter says in order to do that we must painstakingly remove the membrane that lines the inside their shell as it is bad for them. I see, however; videos on youtube that others are just drying them in the sun or nuking them in the microwave for a minute and a half and then simply crush them and mix with food. No probs. Right? My question is is the membrane which lines their own eggs toxic to the chickens or do the shells just need to be dry in order avoid introducing any potentially hazardous bacteria? Any thought folks? Sincerely, 1cluckyhubby.