Making compost from waste is indeed a cool thing. It is indeed a nice feeling to see waste that would otherwise be polluting some garbage dump get converted into something that you can use in your garden.
As useful as composting is, a question remains: Can all waste be made into compost?
Only those plant based waste that can degrade fast can be composted. Crudely stated, only those plant-based stuff that rot fast can compost well.
Thus, a while lot of things that do not degrade fast enough are not compostable – this could also include materials of plant origin such as woody materials, vegetable oils, etc. Besides, of course, metals, plastics, glass, bones etc., which obviously do not compost.
For all practical purposes, the ordinary you and me can utilize most food waste (including food scraps and fruit and vegetable waste), wet kitchen waste based on plants, and garden waste especially leaves, for composting. Also can be used paper, match sticks, feather, cloth waste from natural fibers…
It takes a while to compost (about 2 months if you follow normal composting techniques), but it is worth the wait. The compost that you get can be used a natural fertilizer for your own garden plants – what can be more cool!
From my experiments with composting on a small scale at home and at office, I have seen that exercising a bit of care on what you put in your compost bin makes a big difference to your overall composting experience. Dumping plastic and oily stuff and bones and…into the compost bin can create complications, so beware!