Dropplets inside the bottle on the neck.

[Finlandbrews]

I have some bottles with dropplets inside the bottle on the neck of the bottle. Does it mean I have some air leaking in my bottle and my caps are not air tight?

BTW, are there better caps than other ones?

 

[Finlandbrews]

This is how it looks on the inside of most of my bottles.

View attachment 1466262389134.jpg

 

[wilcode190]

Just looks like you have something like sediment for the droplets to form on. Or you didn't clean the bottles well enough.

 

[MaryB]

Mini krausen in the bottle... may not have been fermented out all the way.