We have access to free apple cores, broken apple pieces, skins, apples that didn't core right.... They are close. Just 2 miles from the house. Pull the trailer in, they load you up with bins, and you drive away and bring the bins back later. The middle garden is in need of more compost materials and so we dumped 8 bins of apples on the rows. If we were to compost this in a pile it would be impossible to turn and compost properly... so we spread it out. Next we will add manure and moldy hay and straw and whatever I can get my hands on in layers. I may cover with black plastic to speed up the heating process.