A few days ago I began brewing my first batch of beer. Over night the jug was overflowing a bit. So I sanitized the airlock and put it back on. I attached a picture. Does the gunk at the top of the jug look ok? Should I be concerned?
Thanks a lot !
Looks good to me.
If you don't have a lot of headspace when you pitch your yeast you should think about using a blow off tube. Airlocks can get clogged and blow. Then you have a big mess to clean up.