I'm playing a game and looking at an item description. But for the life of me I cannot find out what grammar concept is behind the bold portion of the description.
I know the verb being used is 噛む (to chew). But I don't know how we got to 噛みちぎれない. It seems like its the verb stem 噛み plus negative ちぎれる. But I can't find anything on the verb stem + another verb
The item description is
噛みちぎれないほど 硬～いフランスパン。でも 困った事にとても美味しいのである。 Something about not chewing hard French bread. But its very delicious for the annoyance.