Slight sulfur smell in nose

I tried to keep this one covered while in the fermenter, it did get hit with flourescent when I was working on it, but not much. I didnt think about it being light struck though. I might put some out in the light and see what develops from that though!

There was about 1/2" lees on the bottom, it was fairly well compacted, too. I added some bentonite to this batch pre-fermentation to see how it would help in clearing.

I threw in a few grams of hops to dry hop it, or to help mask the smell if I cant get rid of it.
Taste is great, just that slight hint in the aroma thats off puting.

I might try adding some tetra hop extract to another batch to see if I can pull this one off.

It's strange though because I made four batches of this so far and the big differences were the amount of honey used and the yeast used. I used a Wyeast sweet mead yeast in one that was pretty good, and in another batch used half the honey to make a lower gravity mead. Those both were fine and were treated the same way.

I put a piece of copper wire in & aererated it two nights ago, I noticed a drastic drop in smell last night (from a little to just a hint if youre smelling for it) I also aererated it last night just a bit. I was only going to let the copper stay in it for 3-4 days tops and then let it sit for a week and rack off of it again.

I just wanted to test the pre-fermentation Bentonite, looks like I found my answer!

There wasnt a lot of hop residue at all. I was thinking about doing this one with a D47.
Looks like I almost have to now, for research purposes!

From what I've read it really seems to depend on the surface area, and the addition of ascorbic acid. I have a piece of 12 gauge wire thats just long enough to reach to the neck of my 6.5G carboy so I can pull it out easily. I've seen mention of hours to days. I removed the copper wire, so now I am going to fine it and let it sit, then use a tight filter & let that site for a while before bottling (and probably filtering again.)

I should have tested to see exactly what I am dealing with here. I was doing research and found a test where you use a copper sulfate solution, and a copper sulfate / ascorbic acid solution to determine if its a disulfide, H2S, mercaptan problem. Its still pretty early on, so I might try that to see if I can get a better handle on what may have happened.