Daahan biyaha ku salaysan waa dareere viscous leh xabagta, ama saliid, ama emulsion sida wakiilka ugu weyn, iyo dareere organic ama biyo. Dahaarka biyaha ku salaysan oo leh waxqabad aad u fiican ayaa sidoo kale leh hawl-qabad heer sare ah, awood qarsoodi ah oo wanaagsan, dhejis adag, biyo-hayn wanaagsan iyo sifooyin kale; Cellulose waa alaabta ceeriin ee ugu habboon si loo bixiyo guryahan.