Never had that many heads of garlic to worry about and have never tried making garlic powder but we do buy it in bulk because we mix it in with the duck feed for extra nutrition for them. Our goal when we get out to the country is to grow a whole lot more as I just want to mince and can a ton of it because we go through a boatload of garlic, especially if it's already minced and ready to go! Thanks!
Good idea about feeding it to the ducks! I hadn't thought of that!
I've never had that many, but what a good idea for preserving them! They are also good pickled! I only have around 15 bulbs a year because of the size of my garden–and they last until about February…when I sometimes have to buy a bulb.
I LOVE pickled garlic! That's one of the other ways we put all this garlic to use!
I have been dehydrating garlic for a few of years now and am always looking for easier ways. If you want to read about my latest techniques you can check out my post here. https://donteatitsoap.com/2018/02/07/dehydrating-garlic-again/ You just don't find this kind of flavor in a grocery store garlic powder.
I have a ziploc baggie filled with hardneck cloves that I need to do something with (besides cook with). I use garlic powder all of the time, but just didn't really think about trying this!