Kaiser wrote:I bottled with DME and Kraeusen, and never got a ring at the neck of the bottle.
The fact that corn or table sugar provide only simple sugars to the yeast, can lead to a shift in their metabolism. In fact it has been reported (at least for table suger) that beers primed with surgar have a slight cidery taste to them. I never noticed that with my corn sugar primed beers, but I'm not sure if I would be able to pick this out. But a judge might.
Have you ever primed beers with DME ?
Kai
I didn't say that you would get a ring every time or even often. It has been reported by others many, many times. So if you don't get a ring, there still isn't any advantage.
Cidery flavors from sugar is an old wive's tale. Many Belgian beers are made with 10% sugar and they aren't cidery. Many craft brewers use sugar in the BW's. Sucrose is completely metabolized by the yeast as is corn sugar. DME is not.
I don't undersand what you mean by a 'shift in metabolism'. Priming provides so little sugar that it doesn't change anything that can be perceived in the flavor or appearance. Krausening has a few benefits but they are outweighed by the variability for the home brewer. Most German breweries did it because of the big R.
I have never primed with DME because I have never seen a single benefit. I stopped using corn sugar years ago for the same reasons. You can continue as you wish. There aren't enough negatives to say don't do it or that you shouldn't but I'm a 'cup is half full guy'. Why bother if there aren't any benefits and it's more hassle (partially openend DME bags and more cost).