First time brewer here! Tried to look this up online, but I’m still not sure. Is this the start of an infection, or are those just CO2 bubbles? There is no skin.
It’s an IPA; extract w/ steeping grains; today is 3 weeks in primary: was planning to dry hop in a few days; SG was around 1.018-1.019 as of Friday; used US05 yeast. Wasn’t sure what info was needed!