Take the descriptions of the bottles,
So, to follow that new instruction:
A list of all of the other messages in the puzzle, useful or not:
Following the first instruction from the bottles:
Following the second instruction from the bottles:
The beverage descriptions:
Partial answer: Significant progress, not sure how to finish it off
The dots in between the squares...
These can be interpreted
There are also some other ways to extract similar arrangements of letters:
The data collected:
So what next?
As Mariia mentioned in her answer above, this is indeed
By guessing that
Now, some logic and educated guesses help narrow down the moves:
Now let's see the letters that we'll need:
Continuing on like this, all moves are forced to go in one specific place, until the solution is reached:
Very partial answer/ideas:
I’ve made very little progress so far, but they’re too long to put in a comment.
The note can be deciphered by
This gives us the following text:
From here, I believe we have to
The Correct Answer was
However, I think this is a very poor answer. Were I the setter of the question, I would treat the + as an unknown operator. A more reasonable answer than the "correct one" would be:
Partial Answer, more like initial analysis really...
Hint #2 says to focus on where the capital letters are. In the first two stanzas there is unusual capitalization. I believe it is a pattern of zeroes and ones meant to be binary.
The fourth stanza says "As the first is one".
Starting with 1 and continuing word to word, ignoring new lines I got:
Here's an attempt to tie this up... As already established, the clues here refer to:
current bond (formerly 'spray heart')
unpleasant garbage (or 'strict code' in hints)
Taking the 'unshared' letters from each pair suggests a solution of: