Review on 🕯️ Ner Mitzvah Round Floating Wicks - 50 Count: High-Quality Cotton Wicks & Cork Disc Holders, Bonus Wick Removal Tweezers by Elizabeth Brooks

*Update 2014-01-21* I did a non-scientific test and found that 50ml of canola oil would burn for about 12 hours. I think it's a damn good deal. *updated 10/21/13* As for burn duration - this weekend I accidentally left this burn mark on my desk in a small (5 inch) jar containing about 2 inches of olive oil. Burned for over 10 hours. It would have burned longer if the oil level hadn't dropped so low that the wick tipped over and went out. (I have a question about the reviewer who said the tip of the wick ignited the oil and started the fire.) I was there when the wick tipped over and went out, so I saw it with my own eyes. Anyway, I don't know. I don't recommend leaving burning objects unattended but it was nice to know that they are very safe. I was also happy with the burn time. The case for emergency lighting becomes stronger when cost, reliability and safety are considered. One thing I would like to stress to any user is to ensure that only about 1/3 of the wick extends past the silver disc. Anything more and you run the risk of sooting with a flame and/or tipping over with a wick. One more comment and then I'll shut up (for now). Only burn these wicks once. If you blow them out and then light them again (even if you increase the protruding wick), the wicks will tip over. Once the flame goes out, replace the wick and disc with new ones. I love her! I don't know why I haven't been able to find it for so long - it's always been there. Pour some olive oil into a small jar, drop one of these amazingly simple wicks, and voila! Oil lamp. I like the simplicity of the idea. Olive oil lamps have been around longer than candles (a long time). Olive oil burns cleanly, with no smoke, no odor, and most importantly, it dies if knocked over. Keep a pack of these wicks handy in case of a power outage - you can use any type of vegetable oil or liquid paraffin (never, ever, never use kerosene, gasoline, torch gas, mineral spirits, alcohol or anything that has a high evaporation rate) for immediate emergency lighting. A shot glass (about 2.5 ounces) of oil should burn for about 6-8 hours. Like any open flame, never leave unattended, keep away from flammable upholstery or fabric, burn oil only in fireproof cookware (glass, ceramic, metal), and keep away from children and flammable pets.