Those were my thoughts also. the funny thing is with this batch the mash never came up at all! It bubbled ferociously for weeks...
Apparently I am in a time warp also cause I looked back at the bottling date and I have been fermenting for about 7 weeks...wow!
the taste does seem to get more...
So I have been fermenting for a little while now and have gotten my process down pretty well, that being said I just started my own company and changed my process from a cheese cloth top/leaving the top barely on to installing an airlock on all of my jars.
My ferment started amazingly...
Xanthum Gum is your best bet.
You could also try a mixture of Black Strap Molasses, and raw sugar with a bit of coconut water then reduce it on a low simmer until it is super thick and add to your bottles if not filled to the top and shake them up...should be thicker after that but much more...