Is this normal?

[Meadman]

Hey all, first post here. I’m brewing my first ever batch of mead with a kit I ordered. I wanted to know a couple of things, 1: there’s this brown stuff around the neck of the bottle, is this yeast or did I possibly improperly sanitize the bottle and it’s something else? 2:is a kind of egg smell coming from the airlock normal and if not is there anything I can do about it or do I have to dump the whole batch?

 

[GrogNerd]

1) yeast. perfectly normal. until it gains sentience & eats the younglings. pray it doesn't

2) egg fart smell. unfortunately, perfectly normal byproduct of fermentation. it'll fade. or gain sentience & eat the younglings.

 

[CKuhns]

"Egg farts Unfortunately is "normal" but preventable. Often attributed to stressed yeast. Some yeasts apear to be more prone to the phenomenon than others.

Good aeration early on, nutrient additions / protocol, pH adjustment and temperature on the lower end of your yeast tolerance all help reduce the likelyhood.

 

[bushpilot]

Rhino farts should be very rare. I have only had them occur once, when fermenting a cyser without nutrients.