I also found a jelly like substance floating in my 2ltr bottle of pepsi. It hadn't been there the day before.
It was brown on the outside and white in the inner side. I emptied the whole bottle down the sink and picked it up with a tissue. It was about 3 cm long and curled like a latex glove finger that had been cut open.
It was bizarre as the bottle was missing about a glass of pepsi which no one had drunk.???? I can see others have reported the same thing so it must be from the pepsi solidifying in the bottle.
Review about: Pepsi Soft Drink.
Reason of review: Bad quality.