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Old 05-13-2014, 09:01 PM   #1
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Default According to my hydrometer my FG=1% ABV

My first AG wort has been in primary for 10 days now so I wanted to check the FG for the first time, recipe FG=1.051 mine was actually 1.055. Sanitized a turkey baster and filled my test tube about 1/2-3/4 of the way up with wort, dropped the hydrometer in and it just sunk to the bottom. So thinking I had to much wort in the tube I drank a little, which tasted awesome by the way, citrusy, floral, just what I was looking for using Cascade and Citra, so I was happy that it tasted and smelled good. Now with the tube 1/2 full I dropped the hydrometer in and again it just sunk, did not float at all. So I dont know what happened or what this means for my final gravity or product. Recipe calls for cold crashing at 10 days I was gonna wait until Sat (14th day in primary) recheck the FG and then cold crash, I still may procede as planned but Any help would be great.

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Old 05-13-2014, 09:02 PM   #2
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You're doing it wrong.

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Old 05-14-2014, 12:12 AM   #3
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My first AG wort has been in primary for 10 days now so I wanted to check the FG for the first time, recipe FG=1.051 mine was actually 1.055. Sanitized a turkey baster and filled my test tube about 1/2-3/4 of the way up with wort, dropped the hydrometer in and it just sunk to the bottom. So thinking I had to much wort in the tube I drank a little, which tasted awesome by the way, citrusy, floral, just what I was looking for using Cascade and Citra, so I was happy that it tasted and smelled good. Now with the tube 1/2 full I dropped the hydrometer in and again it just sunk, did not float at all. So I dont know what happened or what this means for my final gravity or product. Recipe calls for cold crashing at 10 days I was gonna wait until Sat (14th day in primary) recheck the FG and then cold crash, I still may procede as planned but Any help would be great.
I think you meant 1.055 was your OG, not FG. Anyways, dont go off the side that gives percents, take your OG reading post boil and your FG reading 10 days after pitching yeast. Also, make sure your sample is at the temperature your hydrometer is calibrated for, should say on it somewhere. Failure to do so can throw off readings. Make sure your hydrometer is correct, put it in distilled water and it should read 1.00

(OG-FG)*131=ABV%
IE: (1.055-1.012)*131=5.63% ABV
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Old 05-14-2014, 12:33 AM   #4
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Not really sure how I did it wrong. I pulled a sample and stuck in the hydrometer, it sunk to the bottom of the test tube didn't float even the littlest bit but its hard to get a true reading because since it just sinks, the reading goes to where the liquid is displaced by the hydrometer. So when I filled 3/4 of wort in the test tube then inserted the hydrometer, the wort level raised up to around 1%abv. When there was just under 1/2 of the tube with wort the hydrometer raised the wort level to around 1.065, Doesnt seem like a true reading to me it's just where the wort is displaced by the hydrometer. Maybe I'm reading it all wrong.

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Old 05-14-2014, 12:35 AM   #5
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You are reading it wrong. Watch that video and forget the percent readings on the hydrometer.

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Old 05-14-2014, 12:38 AM   #6
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Put more beer in your sample tube. Fill it up most of the way.


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Old 05-14-2014, 12:42 AM   #7
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I think you meant 1.055 was your OG, not FG. Anyways, dont go off the side that gives percents, take your OG reading post boil and your FG reading 10 days after pitching yeast. Also, make sure your sample is at the temperature your hydrometer is calibrated for, should say on it somewhere. Failure to do so can throw off readings. Make sure your hydrometer is correct, put it in distilled water and it should read 1.00

(OG-FG)*131=ABV%
IE: (1.055-1.012)*131=5.63% ABV
You're correct my OG was 1.055, post boil. The FG for this recipe should be 1.011. It's 10 days today after pitching and the temp is 61-63 deg F in my basement. I'll try again on Sat day 14 and see what happens. I just don't know what would cause the hydrometer to literally just sink right to the bottom and not float at all.
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Old 05-14-2014, 12:43 AM   #8
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It's sinking because there isn't enough fluid in there to keep it afloat.


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Old 05-14-2014, 12:52 AM   #9
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You're correct my OG was 1.055, post boil. The FG for this recipe should be 1.011. It's 10 days today after pitching and the temp is 61-63 deg F in my basement. I'll try again on Sat day 14 and see what happens. I just don't know what would cause the hydrometer to literally just sink right to the bottom and not float at all.

Is it sinking to the bottom as in touching or resting on the bottom? Or is it sinking low but still floating off the bottom. If its touching you need more liquid for your sample.
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Old 05-14-2014, 12:54 AM   #10
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It's sinking because there isn't enough fluid in there to keep it afloat.


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Exactly. Think about yourself in a bathtub. When you sit down, you 'sink', but in a pool you would float, usually lol.
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