Well Boyle, That depends on what you mean by "vermicompost." I suppose a small primer is due here:
Vermicompost - The stuff in the bins that INCLUDES small bits of bedding and food; and which MAY or MAY NOT have gone through a worm's digestive tract.
Vermicastings - The FINISHED vermicastings which DO NOT include anything which HASN'T gone through a worm's digestive tract.
And which of these you have will depend on how you run your bins. IF you add food scraps and bedding and occasionally remove the brown/black "dirt" like stuff that accumulates in the bottom of the bin, you have Vermicompost. IF you leave it till most of the worms have died and there is NOTHING left that even resembles the waste you put in, you have Vermicastings. Both are wonderful for your plants.

I have kind of a question on the subject too. Isn't "Vermicompost" run through a 1/4 inch screen but "Vermicastings" run through an 1/8 inch screen hence only leaving the castings and no food particles, worms, or cocoons?

Brian,

As leearnold explained, it has nothing to do with screening the compost. No matter how fine a mesh you use you will always have vermicompost if you still have living worms when you harvest, and vermicast if all the worms have died off because there is nothing left to eat. Vermicompost is much quicker to produce and you also still have the worms. Vermicast (or vermicastings) takes a lot longer and afterwards you may have some cocoons, but no worms at all.

When I harvested my bin(18 Gal. Rubbermaid) three weeks ago, I hand separated worms, cocoons and bedding into a new bin and the castings into another bin. I realized that there was no way I could have gotten all of the cocoons out of the castings, so I filled a colander with food and stuck it down into the castings. I have probably pulled another 60 baby worms out of the castings bin and they are still coming to that food. These worms are little (3/8" to 3/4" long) and are too immature to reproduce. Just shows how many cocoons I missed!

I feed my worms a lot of coffee grounds and they do look a lot like my finished product. I can tell when I have grounds mixed in with my vermicompost because I always mix it with water to apply it to soil. The vermi-stuff dissolves; the coffee grounds do not.

I only add a teaspoon or so of soil every 3 months or so to my bin, so I don't worry about that being a significant part of the harvest. I also don't worry about getting every baby and cocoon out. I have plenty of worms and they reproduce like crazy, so it saves me a lot of time and headaches and backaches to just leave most of them in the poo that I harvest and count on the others to make more babies in the bin.

I sometimes will add to my population by tossing into my bin stray red wigglers that I find out in my garden, wiggling around under pots and so forth.

On screening - I've found that if you screen with 1/4 you, of course get out the adult worms and uneaten bedding, but get this; If you run those screenings through a 1/8' screen, all of the cast go through but the cocoons are a little too large and get caught in the 1/8" screen so you can dump them out.

Now this works perfectly with Euros, but I have not tried it with red wigglers. Their cocoons might be small enough to fall through the 1.8" screen. The Euro cocoons are barely caught.