Author Topic: The Beer Bug  (Read 2854 times)

Offline AleForce

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The Beer Bug
« on: October 22, 2012, 01:42:19 PM »
It looks like the Beer Bug is looking for supporters of their Digital Hydrometer. They have some updated videos on their www.beerbug.com and http://www.kickstarter.com/projects/parasitx/the-beerbugtm-digital-hydrometer site showing more detailed info about the device. 
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Online snowtiger87

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Re: The Beer Bug
« Reply #1 on: October 24, 2012, 01:39:07 PM »
Looks like a refractometer is much simpler to me.
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Offline AleForce

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Re: The Beer Bug
« Reply #2 on: October 25, 2012, 10:49:04 AM »
Isn't a refractometer only effective for getting OG?  The Beer Bug is designed to monitor constantly during fermentation.
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Offline morticaixavier

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Re: The Beer Bug
« Reply #3 on: October 25, 2012, 11:58:03 AM »
Isn't a refractometer only effective for getting OG?  The Beer Bug is designed to monitor constantly during fermentation.

You can use a refract to get FG you just need to apply some correction factors to the reading. This is because, If I recall, the refractive index of sugar and alcahol are similar so the refractometer can't distinguish when alcahol and sugare are both present.

Sean Terril has a good calculator for this on his site.
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Offline Slowbrew

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Re: The Beer Bug
« Reply #4 on: October 25, 2012, 12:06:25 PM »
Isn't a refractometer only effective for getting OG?  The Beer Bug is designed to monitor constantly during fermentation.

You can use a refract to get FG you just need to apply some correction factors to the reading. This is because, If I recall, the refractive index of sugar and alcahol are similar so the refractometer can't distinguish when alcahol and sugare are both present.

Sean Terril has a good calculator for this on his site.

I use Sean's calculator and it works very well.

Paul
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Online a10t2

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Re: The Beer Bug
« Reply #5 on: October 25, 2012, 11:27:15 PM »
Glad it's working out for you guys. Here's the direct link to the calculator: http://seanterrill.com/2012/01/06/refractometer-calculator/ There's also a spreadsheet you can download to track multiple batches.
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Offline tschmidlin

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Re: The Beer Bug
« Reply #6 on: October 25, 2012, 11:57:42 PM »
You can use a refract to get FG you just need to apply some correction factors to the reading. This is because, If I recall, the refractive index of sugar and alcahol are similar so the refractometer can't distinguish when alcahol and sugare are both present.
It has nothing to do with how similar they are, it is just that they are both non-zero.

I recommend Sean's calculator too.
Tom Schmidlin

Offline sparkleberry

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Re: The Beer Bug
« Reply #7 on: October 25, 2012, 11:59:30 PM »
what is the wort correction factor and how do i know if i need to change it?
cheers.

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Offline tschmidlin

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Re: The Beer Bug
« Reply #8 on: October 26, 2012, 12:00:56 AM »
what is the wort correction factor and how do i know if i need to change it?
Just use the calculator at http://seanterrill.com/2012/01/06/refractometer-calculator/
Tom Schmidlin