Bonewerks is the best you can get
It would be an insult to compare bonewerks with any other demi-glace available (inferior flavor/high sodium content/cheap price.) this is the real deal folks. if you are serious about taste and quality - bonewerks is the best. i've been using their products for quite a few years now and can't say enough good things about the taste, quality and customer service. their chicken, beef, lamb, pork and seafood glaces are unmatched.