Storing Juice

hello all...

i have been growing wheatgrass on my balcony and have very healthy plants. In fact, it's a bit more than I can consume in a day (guess I should start drinking more)

I have a very old fashioned hand cranking juicer which is a pain in the neck to put together and then take apart again twice a day. Is it possible to juice, say 250-500ml and keep it in the refrigerator? I'd so much prefer to do that, not just to save on the cleanup/headache of the whole process, but also so that I could just take a shot any time I felt like it.

Thanks!