Thank you for the answer. What I couldn't really understand was, all numbers were matching (the highlighted part) until the end of boil. That is why I have asked the question.

Thank you :)

Hi all, I might be doing something wrong but couldn't figure it out. Today I have brewed a Baltic Porter. All went accordingly to the recipe calculator until the post boil OG. I have ended up with 10 points less OG (1.070 instead of 1.082) I'd like to know what to check because even the sizes...