How often should I mix the compost?Updated 2 months ago

You can make perfectly good compost without mixing or turning the heap, especially if you have mixed up the various types of material before adding them to the bin.
If your compost tends to be rather too dry or too wet (or you are not sure how it is going), mixing the contents of the bin now and again gives you the opportunity to adjust the balance of materials. It can also speed up the process if the heap was short of air. Simply lift the bin off the heap. Mix everything up – adding extra material to make it wetter or drier if required then put it all back into the bin.

Turning and mixing is made easy with a compost tumbler. However, material in a tumbler tends to dry out, and you need to make sure it is sufficiently moist for the composting process to proceed effectively.