The extract recipe I made last week said it would be 1.050 OG ( (FG 1.013) I did an online calc of the ingredients and it came out the same. However my OG came out to be 1.042.
Here are the changes I made to the recipe but can't figure out why that would have any influence. That may well be my lack of knowledge. First off the recipe called for 1.5 gals of water. I've made a couple this way and found it too concentrated (thick ) after evaporation and boiling so I upped it to 2.5 gal in the brew pot. The other change I made was to do an extract late. My late addition was done at 15 minutes left in the boil and I used half of my total extract. (the total was 6.6 lbs). Other than that I followed the recipe.
Now I thought that the addition of more water would lower the gravity but then thought "what's the difference?" If I didn't do it in the kettle I would do it in the fermenter anyway to bring it up to 5 gal. Then I thought about the late addition.
But that would make the gravity lower only "during" the boil before I added the last extract wouldn't it? Not after adding more extract.
Any clues? Also what should my new FG be? I fear I may end up with a 2% ABV beer