how long do you keep the eggshell powder for? does it go bad after a couple of months, or since it's a powder, there's no like expiration date for it? thanks. also, is boiling it necessary? cause i read somewhere online that it would ruin the full benefits, something like that since the calcium from the eggs gets transferred through the water or something lol. so i was just thinking if it's okay to skip the boiling part and just go straight to baking it in the oven after letting it airdry? so many questions waiting to be answered haha. hope you get back to me on this. keep doing awesome tutorials.