Originally Posted by cowboy65
...when I opened the bottle after 2 weeks of sitting in a dark 65-68 degree room the carbonation was very heavy. The OG was 1.078 FG was 1.018. Should I let it sit another week?... Also I had zero sediment in the bottom of the bottle...
I consider myself a beginner brewer also, but I can think of a few things that might affect it:
Did you chill your beer down from 68 before you opened it? For How long? The yeast will eat the priming sugar and produce CO2, some of which will sit in the headspace at warmer temps. When you chill the beer long enough, this pressure in the headspace will dissolve into solution.
Having such a high OG, its hard to say whether 1.018 is a good FG. You really need to take a few hydrometer readings and make sure its not moving. If it was still fermenting slowly it would mean there were still sugars in the wort. These in addition to the priming sugar might have caused a slight over carbonation.
Lastly, 2 weeks bottle conditioning seems rather short, especially for a beer with a higher OG. I would wait another week, and open one on week 3 without very high expectations (rather open one just to witness the process). Personally I would start opening the bottles closer to 4 weeks conditioning time. The process of carbonation should produce another small 'flush' of yeast which will settle out once its done carbonating, so you should see some sediment on the bottom. This is yet another sign you opened them a bit prematurely.
The most important thing I have learned in homebrewing is to use the recipe as a guideline and let the beer tell you what it needs.