Fairly new to this myself and tried my hand at a braggot recently. I had a smell that sounds very similar--off, in a way that I could not describe easily. Cabbage sounds close enough. In my case I made a short mead.. not technically a braggot I guess as there was no malt used. But I realized that it was the hops causing the smell, I used 2 oz steeped and added to a one gallon brew with an OG of 1.060.
I almost put it down the drain but decided instead to let it sit. I've had four bottles now and the last one was actually good (the first were quite clearly anything but good). I wonder if the potency of hops in this setting just needs to age. Jury is still out on if it will age enough to be worth making again... although I did try another version with a higher OG and a lower amount of hops.. smells fantastic but it's only a few days in..
I almost put it down the drain but decided instead to let it sit. I've had four bottles now and the last one was actually good (the first were quite clearly anything but good). I wonder if the potency of hops in this setting just needs to age. Jury is still out on if it will age enough to be worth making again... although I did try another version with a higher OG and a lower amount of hops.. smells fantastic but it's only a few days in..