Soil, do/can you eat the grass, or do you have to juice it first? Will any old juicer do, or do I need one specifically for grasses?
you do not eat the grass, we do not have the stomachs to process them. we can however process the nutrient rich juice.
i find you get more out of your wheatgrass with a wheatgrass juicer. we spent a little extra to get one that does other things as well. we got the omega juicer which runs about 200$. it may sound expensive but it makes wheatgrass, applesauce, frozen fruit puree, juices veggies, makes nut butters, makes pasta, and more. even if that still sounds expensive. 3 people taking wheatgrass daily made up for the price in less than a month compared to what it would have cost to buy wheatgrass from a store everyday. so really in the long run your saving tons of money, that's not even taking into account all the health issues that you wont have to deal with either which saves even more cash and hassle.
Oh, and while I'm on a roll, are there different types of wheat grass? Are some better than others?
there are different "types" of wheatgrass. but to give you more options you can also juice barleygrass, kamut grass, and pretty much any whole grain grass. each have slightly different nutrients they are more rich in.
i will say that its not for everyone, mostly not for lazy people. for those dedicated though they will reap the rewards wheatgrass gives, and i can tell you the rewards are plentiful.
For all things come from earth, and all things end by becoming earth.