In beer "trouble shooting," always think
"evaluation" before "action" in other words, evaluate the beer using proper tools (hydrometer, tastebuds, nose) before doing something to "fix" it (i.e. Re-Piching yeast, bottling, or dumping.)
You can't fix something unless you know it's broken...And you can't know something is wrong if you don't "listen" to your beer.
Our beer talks to us in many ways...The most obvious is through our senses. Sight, taste, smell.
But that can easily be deceiving; We can misread lack of bubbles in the airlock, or not seing a krauzen as a problem, when in reality the airlock is pretty faulty piece of cheap plastic jambed into a cheap gasket and could easily leak or be askew, or the krauzen hasn't yet started or came and when between our checking on it.
We can taste a beer when it is green, and think it is infected or flawed, because things "funky", but which more than likely will be gone in decreased as the beer matures.
And can anyone say "Rhino Farts?"
(Use the search is you don't understand that reference.)
See, our senses, especially if we are new to this obsession, can be deceiving. But with experience we can use them to help listen to the beer, but that takes time to learn..
There is one other language that the beer speaks to us in, and it is pretty infallable. It is the language of "Specific Gravities," that is a beer or wine's native tongue. You'll be less "Paranoid" when you can speak the language of your beer...and the babel fish translator of specific gravity into human speak is the hydrometer...
Most new brewers think something's wrong and do something in a "panic," before evaluating truly if something is indeed wrong.
A lot of time it seems, based on the number of threads, that the main issue or fear is lack of fermentation, or "stuck fermentation."
More than likely your beer is fine and one or two things has happened, it finished early (fast fermentations do occur) or it hasn't even begun yet (remember fermentation can take up to 72 hours to begin)
and nothing is wrong in either case.
Fermentations in normal beers don't get stuck unless there are a lot of fermentables present (then it wouldn't be a "normal" grav beer) or there is a major downward temp shift. But otherwise, the above scenarios have more than likely occured.
Don't ever repitch or even consider repitching before you take a hydrometer reading.
Don't ever rack if you suspect something is wrong before you take a hydrometer reading.
Don't ever bottle if you suspect something is wrong before you take a hydrometer reading.
In other words;
Don't try to fix a problem unless know that there is indeed a problem, and don't assume there is a problem just because the beer isn't acting in the way you think it should be.
Often if your beer isn't ruined, your trying to fix it may actually cause it more harm than good. For example if you bottle too soon because you see white fizzy stuff on your beer (which usually are post krauzen yet still active yeast colonies) you may be setting yourself up for bottle bombs.
Remember, unlike coolaid, or inorganic chemistry, we are dealing with
living microrganisms (yeasts) and like any living things (think teenagers or swmbo's) they have their own agenda, and their own timeframe...They will do the job you ask...but at their own pace.
I subscribe to the philosophy that the yeast has been doing this making beer thing since long before I was born, so they're the experts, and they rarely fail. Our job is just to provide them with a clean and sanitary temporary office to work in, and to let them have plenty of food to eat...The rest of the job should be left to them.
Yes sometimes problems occur...But it is rare. And the only way to know for sure is to listen to them in their native tongue, not yours.
Just rememer this simple motto,
"evaluation" before "action" and all will be well.
