Wash the vegetables using water and a stiff vegetable brush.
1) Remove the carrot and beetroot tops, and peel the beetroot if its skin is tough. If it has a nice thin skin then just cut off the top.
2) Slice up the vegetables to fit your juicer.
3) Juice and serve.
The green beetroot tops are edible, rich in beta-carotene, and can also be juiced. They have a strong flavour and are rich in oxalic acid which if taken in excess may form kidney stones. I find a little goes a long way.