Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Home Brewing Beer > General Beer Discussion > I tried a refractometer- not so hot

Reply
 
LinkBack Thread Tools
Old 10-27-2008, 07:36 PM   #31
Saccharomyces
Be good to your yeast...
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Saccharomyces's Avatar
Recipes 
 
Join Date: Jun 2008
Location: Pflugerville, Texas
Posts: 5,443
Liked 80 Times on 52 Posts
Likes Given: 2

Default

I like to take a first wort gravity reading, and compare to the theoretical first wort gravity. If they match, I'm good, otherwise I don't have full conversion so I know I had better look for something amiss.

I also take readings of second and third runnings. It would simply be impossible to do all of that with a hydrometer. By the time the sample was cool enough, I would have moved onto the next step, without having time to adjust if I catch something awry.

Once the runnings are in the kettle, I put away the refractometer, but both tools have their place in my brewhouse.

__________________
[How to Calculate Mash Efficiency | Do I Need a Yeast Starter? | My Ghetto Fermentation Chamber | Twitter | 6 Gal. HDPE Fermenters | Slanting Yeast | No Sparge Brewing]

Quote:
Originally Posted by Soperbrew
big brother only monitors facebook and untappd
Saccharomyces is offline
 
Reply With Quote Quick reply to this message
Old 10-28-2008, 11:57 AM   #32
brwbier
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2008
Location: Sheboygan, WI
Posts: 9
Default

Quote:
Originally Posted by billtzk View Post
Why? What do you use it for?

I test the gravity of my wort three times on brew day. I use a hydrometer and sample tube.

My first test is of the tail of my runnings after I've collected all my wort, just to make sure I'm not over extracting. My second test is to get the gravity of the wort in the boiler, my pre-boil mash gravity, after I've collected all my wort. So test 1 and 2 are back to back. Test 3 is my OG in the fermenter before I pitch.

I can't think of a good reason to buy a refractometer. My hydrometer works fine.
How do you cool a sample fast enough to make a hydrometer usefull? By the time its cooled enough that part of the boil is past.
__________________
brwbier is offline
 
Reply With Quote Quick reply to this message
Old 10-28-2008, 02:42 PM   #33
CBBaron
Feedback Score: 0 reviews
 
CBBaron's Avatar
Recipes 
 
Join Date: Feb 2007
Location: Cleveland
Posts: 2,787
Liked 6 Times on 4 Posts

Default

Quote:
Originally Posted by billtzk View Post
If you are an all-grain brewer, a hydrometer is equally helpful. Either a hydrometer or a refractometer is essential. You need a way to measure gravity, while they are used differently, neither does the job better than the other.
Except with a refractometer you can take a small drop and place to measure your gravity almost immediately. With a hydrometer, you must take a much larger sample and cool it to about room temp before you can make the measurement. The refractometer is much quicker and easier. However you are correct that the hydrometer is sufficient.

Craig
__________________
CBBaron is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Refractometer, which is best? Jumbo82 Equipment/Sanitation 10 07-02-2009 11:52 PM
Refractometer FG avaserfi Equipment/Sanitation 6 04-13-2009 05:18 PM
Refractometer akamatt Equipment/Sanitation 15 08-08-2008 08:51 PM
Which Refractometer Sherpa FE All Grain & Partial Mash Brewing 16 02-05-2008 04:03 PM
refractometer ROAD MUTANT Equipment/Sanitation 20 06-21-2006 05:16 AM