Second gravity reading

Took a second reading a day later. I also took a pic to make it easier to compare. The top of the bubbles clearly are at 1004 so I guess we are St about 1006.

This reading is definite while yesterday's I wasn't certain of so I will see tomorrow.

I noticed some worrying white areas on the top of the beer and decided to taste a few drops from the hydrometer. It didn't taste good. It's hard to tell with such a small amount but it seemed very salty. I fear for it. Will try some properly before bottling.