Avoided a stuck fermentation, but

[Malric]

I brewed up a batch of fireside ale three days ago, but there was zero fermentation after 30 hours. The carboy was in a closet sitting at about 66 degrees. I added a small lamp (60w bulb), wrapped the carboy in a towel to minimize light exposure and it warmed it up to 71 degrees. The fermentation picked up and is moving along nicely now. What I'm wondering is will incandescent bulbs cause issues or is it only natural light?

 

[devilishprune]

So...you had a lightbulb in a closet with the carboy wrapped in a towel? Was the bulb right next to the carboy or anything? Also, what color is your beer?

Darker beers are less subject to skunking because light can penetrate all the way to the center of the carboy. Also, if it was less hoppy and more heavily flavored then it is more able to resist the affects of light exposure.

Yes, it is all types of light and not just sunlight.

 

[JoeBuch]

I think think you're fine. I base that on reading:this

 

[Malric]

@devilishprune - The lamp is about 24-30 inches away from the top of the carboy. It's about a 30-33SRM.

@JoeBuch - Thanks for the link. That was extremely helpful. I may switch over to ale pails for the winter and purchase a brew belt.

Thanks.