Lower SG than recipe calls for

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mxsteve625

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I just brewed a Brewers Best American Pale Ale (during snow storm I must add). The starting gravity at 4.5 gallons is 1.021 versus the recipe of 1.051 to 1.055 at 5 gallons. This is the second batch I have brewed and did not have this problem with the first batch. I followed all instruction carefully. I did add Irish moss and gypsum the last 15 minutes to the boil. Is this bacth ruined or WHAT?

What can I do if anything at this point?

Steve
 

Wade E

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As some others would say it takes time for the extract to become mingled in and the sg will come up. Ive never had this problem at all myself, although I nail it with a drill mounted stirrer to aerate the must really well before adding my yeast.
 

mxsteve625

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Really, I did stir with a hand paddle...not a drill mounted. Should I take another reading in the near future and use it as my OG? If so when should I do this?
 

mxsteve625

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My hydrometer was bad. I went and got a new one today and compared the readings between the two in regular water and the difference was significant. I am in ggod shape now.
 

Malkore

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it really IS that hard to mix a partial extract boil into the top off water.

on extract recipes you really cannot miss your OG if you did the recipe right and topped off to 5 gallons. You can even skip the OG reading if you like. Extract gravity really is that predictable.
 

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