Author Topic: Light bulb in fridge to control temp.  (Read 3051 times)

Offline shawnx86

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Light bulb in fridge to control temp.
« on: November 21, 2009, 10:06:53 AM »
I have converted my freezer using this as a guide. http://www.oregonbrewcrew.com/freezer/freezer.html I noticed that he is putting a lightbulb in the freezed to adjust the temp. Will this skunk the beer? Would a red reptile infrared heat lamp work better?

Thanks for your reply.
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Offline denny

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Re: Light bulb in fridge to control temp.
« Reply #1 on: November 21, 2009, 10:28:20 AM »
Incandescent light will not skunk beer.
Life begins at 60.....1.060, that is!

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Offline a10t2

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Re: Light bulb in fridge to control temp.
« Reply #2 on: November 21, 2009, 11:07:39 AM »
Well... incandescent light will not skunk beer *as quickly*. The tail of a tungsten spectrum extends well into the UV band.

I just found this really neat site: http://www.gelighting.com/na/business_lighting/education_resources/learn_about_light/distribution_curves.htm
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Offline denny

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Re: Light bulb in fridge to control temp.
« Reply #3 on: November 21, 2009, 11:11:19 AM »
Thanks for the correction!
Life begins at 60.....1.060, that is!

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Offline MDixon

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Re: Light bulb in fridge to control temp.
« Reply #4 on: November 21, 2009, 12:15:56 PM »
An incandescent bulb mainly puts off heat and has NEVER skunked a beer in a carboy or bottle for me with at least 10 years of using it to heat the space.
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Offline denny

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Re: Light bulb in fridge to control temp.
« Reply #5 on: November 21, 2009, 01:02:53 PM »
But then, given the beers you usually make, how would yo know???  ;)
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Offline hopfenundmalz

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Re: Light bulb in fridge to control temp.
« Reply #6 on: November 21, 2009, 01:32:41 PM »
I use a light bulb to help heat the fermenting beer in the garage during winter.

No skunking.

But did I say that the beer is in a SS conical?   :D

« Last Edit: November 21, 2009, 04:51:26 PM by hopfenundmalz »
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Offline MDixon

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Re: Light bulb in fridge to control temp.
« Reply #7 on: November 21, 2009, 01:36:53 PM »
But then, given the beers you usually make, how would yo know???  ;)

It's not a popularity contest, it's beer!

Offline Thirsty_Monk

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Re: Light bulb in fridge to control temp.
« Reply #8 on: November 21, 2009, 01:56:15 PM »
I wrap aluminum foil around the bulb.
It allows heat to be transmitted without the light.
Works for me  ;) 
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Offline dhacker

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Re: Light bulb in fridge to control temp.
« Reply #9 on: November 22, 2009, 05:24:35 AM »
I try to protect my beer from as much light as possible, no matter what the source, as cheap insurance. The foil over the bulb seems like a good idea, even a dark towel wrapped around the carboy would work.

Myself? I use an old water bed heater pad in the ferment chamber during the cold months and flip the switch on the Johnson A419 to heat mode. Works like a charm!
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Re: Light bulb in fridge to control temp.
« Reply #10 on: November 22, 2009, 05:57:38 AM »
I wrap aluminum foil around the bulb.
It allows heat to be transmitted without the light.
Works for me  ;) 

I did that once to make a reflector for a light bulb. The boil touched the socket and was electrically charged. It was humming all though my arm and that was in Germany where we have 220V. I'm happy that I'm alive.

To heat my chest freezer I now use one of the energy saving bulbs (13W) and put 2 brown paper bags around it. Eventually I want to put some sort of heating mat at the bottom. I think that this will make for a more even heat distribution.

Kai


Offline Thirsty_Monk

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Re: Light bulb in fridge to control temp.
« Reply #11 on: November 22, 2009, 05:08:17 PM »
I did that once to make a reflector for a light bulb. The boil touched the socket and was electrically charged. It was humming all though my arm and that was in Germany where we have 220V. I'm happy that I'm alive.

Yes electricity can be dangerous.
Use aluminum foil on glass part only. It is pretty inefficient to heat this way.
There are ceramic heaters that screw into light bulb socket.
You can find these heaters in pet shops but they are around $30.
Heating pad like FermWrap is also a good option but they are around $35.
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Offline slimsparty

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Re: Light bulb in fridge to control temp.
« Reply #12 on: November 25, 2009, 09:52:42 AM »
I use a 40watt bulb in my lagershed.  That is a old concrete walkout that ends under my deck now.  I boxed it with ridged styrofoam and put in a trouble lite.  Seems to hold the ambient right about 40degrees.

i lagered in buckets and wasn't worried about the light.

Offline bonjour

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Re: Light bulb in fridge to control temp.
« Reply #13 on: November 25, 2009, 11:10:48 AM »
I use a light bulb in a freezer and ferment in buckets, never had a problem.

Fred
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Offline karlh

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Re: Light bulb in fridge to control temp.
« Reply #14 on: December 09, 2009, 01:39:10 PM »
I have done the same with a low watt bulb in the temp controlled chest freezer (in the unheated garage) during the winter months.  I usually ferment in steel or plastic, and have not have any skunking issues.  Given that the chest freezer is well insulated a very small source such as a night light or 15 watt lamp is enough. 
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