Also just had a thought , on beer engine does the corrected brix value mean thats the equivilant sucrose brix value ?
Think that makes sense lol.
Seems my correction factor is 1.01 that gives me og 1.063 , brix reading of 15.6 and a corrected brix of 15.45 .
Refractometer software, WARNING!
Re: Refractometer software, WARNING!
Did yer like that?
- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Refractometer software, WARNING!
GW emphasises that a refractometer reading of wort is only ever an approximation. Because a refractometer is set up to read the refractive index of sucrose wheras wort is a mixture of maltose & dextrins and obviously changes that mixture depending upon what you're brewing. As he says "the calibration factor is not a fixed figure, but varies according to wort composition. Different types of beer may require different calibration factors. Also, a hydrometer responds to all dissolved solids, solids such as protein, but the refractometer does not. This implies that different calibration factors may be required at different stages of the brewing process
This is before the complication of fermentation and how yeast and CO2 bubbles mess with it further.
The take home lesson for me in all this then is if you are going to use a refractometer you have to use a hydrometer as well to calculate the calibration factor for EACH brew and not have a single default setting as different brews will of course have different fermentables, how many of us know that and act accordingly?.
This is before the complication of fermentation and how yeast and CO2 bubbles mess with it further.
The take home lesson for me in all this then is if you are going to use a refractometer you have to use a hydrometer as well to calculate the calibration factor for EACH brew and not have a single default setting as different brews will of course have different fermentables, how many of us know that and act accordingly?.
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
- gregorach
- Under the Table
- Posts: 1912
- Joined: Wed Jun 08, 2011 10:07 am
- Location: Edinburgh
- Contact:
Re: Refractometer software, WARNING!
Or you just have to accept that none of these measurements are actually that accurate anyway. How good do you think your hydrometer really is?orlando wrote: The take home lesson for me in all this then is if you are going to use a refractometer you have to use a hydrometer as well to calculate the calibration factor for EACH brew and not have a single default setting as different brews will of course have different fermentables, how many of us know that and act accordingly?.
Cheers
Dunc
Dunc
- orlando
- So far gone I'm on the way back again!
- Posts: 7197
- Joined: Thu Nov 17, 2011 3:22 pm
- Location: North Norfolk: Nearest breweries All Day Brewery, Salle. Panther, Reepham. Yetman's, Holt
Re: Refractometer software, WARNING!
Fair point, I guess you have to have something and as long as they are "equally wrong" then it will allow a degree of consistency beyond merely guess work.
I am "The Little Red Brooster"
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer
Fermenting:
Conditioning:
Drinking: Southwold Again,
Up Next: John Barleycorn (Barley Wine)
Planning: Winter drinking Beer