Foam in neck of bottles.

[petie]

My coconut porter has been in the bottle for 2 weeks and since the third day I've noticed a ring of bubbles around the neck of the beer. It's not like a head just a ring of bubbles in every bottle. I opened one and I can't taste any off flavors other than its still pretty boozy.
The black rye ipa that I bottled at the same time looks fine. All the bottles for both batches were washed and sanitized exactly the same.

 

[boscobeans]

Probably just CO2 forming as the beer carbonates. Sometimes this will leave a slight ring as the beer conditions, if so you can give the bottle a few swirls after a week or so and that generally will allow it to settle to the bottom.

bosco