Look up " the berkley 18 day hot composting method for a real good read of what you can and can't compost.
I have seven of the council Dalek type lidded composting cones about 1920 mtrs from the house in the garden area .. Mine are on smooth floated concrete for ease of turning one bin into another , working and for general keeping me and the area clean as weeds don't grow very well through six inches of concrete .
It is a godsend in foul wet weather and as I have PIR flood light over the area dark winter night are not a problem .
To aerate the bins to give the useful bacteria & fungi a lot more oxygen for a better composing action and retention of as much of the dried juices as possible , I simply rock the Dalek back and forth till it loosens and the drag it up & off the pile .
Then it's a simple matter of slice off the outer sides ,drop that in to the middle of an empty Dalek and then add the remainder so that what was the outer edges is fully covered to enable you to rot down or kill all pernicious weeds & seeds. if you use a spray hose and damp the contents down as you rebuild this helps bring the internal temp up to about 150 oF for a few days on the first turning . subsequent turnings see the temp upper range diminish so that by the 18 day there will be an internal temp of just a few degrees above the ambient temperature.
One you get a pile in the 18 day cycle don't add anything other than the water spray as you rebuild the heap .
Compost made by the 18 day hot composting method is a fantastic well balanced material that can be stored for a couple of years in sealed poly sacks . If left in the Dalek the local worms will find their way in to it and consume it , turning the 18 day compost in to worm cast substance or a compost with a high worm cast content ..
This is magic stuff to use in your gardens both for flowers and for veg.