by cacofonix » Sat Feb 14, 2009 8:58 am
DR...I'm not so sure that what he is saying and an expeller press are one and the same...int he case of an expeller press, the algae are crushed using a screw-type mechanism, and the oil seeps out through the holes.
I think what has been mentioned by moosepsc is a way by which algae are pressed between holes and if the algal cells are larger than the holes, they break and release the oil...I am not really sure how this works or whether this is any better, but I think this is different from an expeller