Those new curly bulbs, do they emit UV? - Home Brew Forums
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Old 02-01-2009, 12:48 AM   #1
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Do those new curly light bulbs that are replacing incandescent ones produce hop skunking UV rays?


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Old 02-01-2009, 01:07 AM   #2
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Absolutely! They are flourescent, so they probably emit MORE harmful UV light than incandescent bulbs.


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Old 02-01-2009, 01:15 AM   #3
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They are evil

They must stay on for 20 minutes every time they are turned on or the life span is much shorter. The 7 year claim is for 2 hours a day only. And it skunks beer. I have incandesent bulbs everywhere I have beer

 
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Old 02-01-2009, 01:27 AM   #4
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Quote:
Originally Posted by niquejim View Post
They are evil

They must stay on for 20 minutes every time they are turned on or the life span is much shorter. The 7 year claim is for 2 hours a day only. And it skunks beer. I have incandesent bulbs everywhere I have beer
Not to mention the whole mercury thing...
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Old 02-01-2009, 01:35 AM   #5
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Quote:
Originally Posted by niquejim View Post
They are evil

They must stay on for 20 minutes every time they are turned on or the life span is much shorter. The 7 year claim is for 2 hours a day only. And it skunks beer. I have incandesent bulbs everywhere I have beer

I'm not convinced that they will skunk beer. I had some green grolsch bottles in my basement for the last 4 months and they were exposed to fluorescent light for about 2 hours every day. I stumbled across them on friday and the beer was very good not a hint of skunk to be found. I'm not recommending this to anyone but I don't think limited exposure would be a problem at all.

 
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Old 02-01-2009, 01:37 AM   #6
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I use fluorescent bulbs to start seeds for my garden BECAUSE they emit nearly the entire spectrum of light, including UV. They're great for plants, but bad for brews.
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Old 02-01-2009, 04:40 AM   #7
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Quote:
Originally Posted by niquejim View Post
They are evil

They must stay on for 20 minutes every time they are turned on or the life span is much shorter. The 7 year claim is for 2 hours a day only. And it skunks beer. I have incandesent bulbs everywhere I have beer
I have used CFLs almost exclusively for over five years now. I've had a pretty high failure rate with "specialty CFLs" like those for bathroom lighting, but I've only had to replace two of the normal ones ever.

I have never experienced any skunking of my beers, although I bottle in brown bottles and keep my carboys covered most of the time.

YMMV. For me, the advantages outweigh the disadvantages.

 
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Old 02-01-2009, 03:16 PM   #8
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Yeah I am pretty much convinced that CFLs are the light bulbs of Satan....Save electricity by turning your house into a haz-mat clean up site if your break one... BLEH..
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Old 02-01-2009, 03:27 PM   #9
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I've been using compact florescents for a long time (you wouldn't believe what was being sold 15 years ago). Never had any trouble with skunking.
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Old 02-01-2009, 03:33 PM   #10
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I've used only CFLs for quite some time. Some of the ones I'm running now have been with me through 3 apartments and lasted 4 years. The best upgrade was putting one in my desk lamp since it use to get so hot the desk below the lamp would be warm. Now I have to put my hand up to the bulb to feel the heat it's releasing. I've only had one fail on me and that was a small one I tried outside for the porch light. Cold weather didn't agree with the CFL, even though it didn't get that cold. I think every light in my house is a CFL except the fridge lights.

Quote:
Originally Posted by Duckfoot View Post
Yeah I am pretty much convinced that CFLs are the light bulbs of Satan....Save electricity by turning your house into a haz-mat clean up site if your break one... BLEH..
They don't contain that much mercury, are pretty hard to break IMHO much harder than a normal 60-watt bulb, and their energy savings offset pollution that would be released at a traditional power plant.

"But if the CFL is not recycled and it ends up in a landfill, EPA estimates that about 11% of the mercury in the CFL is released into air or water, assuming the light bulb is broken. This is because most mercury vapor inside fluorescent light bulbs becomes bound to the inside of the light bulb. Therefore, if all 290 million CFLs sold in 2007 were sent to a landfill (versus recycled, as a worst case) - they would add only 0.13 metric tons, or 0.1 percent, to U.S. mercury emissions caused by humans."

What are the mercury emissions caused by humans? Do CFLs that end up in a landfill contribute to these emissions?


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