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Old 01-11-2013, 07:45 PM   #1
jarv
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after 10 days of fermenting, my hydrometer reading is dropping day by day?! hmmm

it about 2lbs oz and 0.7% alc

 
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Old 01-11-2013, 07:51 PM   #2
duboman
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Quote:
Originally Posted by jarv
after 10 days of fermenting, my hydrometer reading is dropping day by day?! hmmm

it about 2lbs oz and 0.7% alc
You are reading the wrong scale.

You should be reading the numbers that start with 1.000. So for example your starting gravity may have been 1.060 and now it is at 1.020.

Edit: double post please delete
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Old 01-11-2013, 07:54 PM   #3
duboman
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Quote:
Originally Posted by jarv
after 10 days of fermenting, my hydrometer reading is dropping day by day?! hmmm

it about 2lbs oz and 0.7% alc
You are reading the wrong numbers, you want to be reading the scale that starts at 1.000 as in 1.020, 1.030.....you should have taken a starting gravity before you pitched which would have been a higher number than where it's at now
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Old 01-11-2013, 08:03 PM   #4
jarv
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ok, maybe I am reading it wrong but I have alc% scale on mine too and each day hydrometer is sinking about 0.5mm

 
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Old 01-11-2013, 08:07 PM   #5
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the scale you are seeing is for potential alcohol. it is dropping because as your beer turns into more actual alcohol it has less potential alcohol.
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Old 01-11-2013, 08:22 PM   #6
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Quote:
Originally Posted by the_trout
the scale you are seeing is for potential alcohol. it is dropping because as your beer turns into more actual alcohol it has less potential alcohol.
^^this, just read the correct scale and you'll be fine
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Old 01-11-2013, 08:23 PM   #7
freisste
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Follow up question. Why is the number changing? No matter the scale, it should have reached equilibrium by now.

 
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Old 01-11-2013, 08:26 PM   #8
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Not necessarily. Primary goes until the number quits dropping or you reach what your aiming at.
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Old 01-11-2013, 08:27 PM   #9
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Quote:
Originally Posted by freisste
Follow up question. Why is the number changing? No matter the scale, it should have reached equilibrium by now.
How do you know that? Yeast don't work on calendars or count days or hours, they just eat sugar, when there is no sugar left they drop out and their job is done. Could be 3 days , could be 2 weeks, all depends on the yeast and the beer they are making.

When the numbers don't change anymore then they did their job
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Old 01-11-2013, 08:30 PM   #10
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Quote:
Originally Posted by freisste View Post
Follow up question. Why is the number changing? No matter the scale, it should have reached equilibrium by now.
Yes, in most cases your beer will have reached its FG by day 10 but that isnt the case here. Yeast work on there own schedule and cant read the directions. Thats why there is no substitue for taking hydro readings and its generally recomened to let them work for 2-3 weeks if youcant take a reading. Without know more from the OP its would be hard to say what is prolonging the conversion.
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