Your Home Yeast Lab Made Easy - DIY Alcohol Lamp
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- Опубліковано 19 жов 2024
- In the second video of this series I show you how to construct an alcohol lam - a DIY-replacement for the Bunsen burners normally used in the lab. I then show you the basics of working with these lamps, and how to use them to keep your tools, tubes and plates clean.
As always, a post with additional details can be found at my blog: suigenerisbrewi...
0:03 Introduction, Aseptic Techs and flames
0:20 Bunson burner options
0:32 Materials
1:07 Process of making a burner
1:40 Filling jar with fuel (clean burning, non petroleum)
2:11 Adjusting wick length and damp, lighting it.
2:35 Lamp does one of two things, sterilization, workspace air currents
3:10 Work area near flame that is relatively clean
4:17 Putting it out with some hot air from the author.
4:26 Summary and thanks with links.
Thanks for the timestamps - comment pinned!
So simple, yet so very useful.. especially for what I need it for, in mycology. Thanks for posting this.
Glad you found it useful!
So simply.thanks for saving me $10
this is so helpful!
thanks for the video. can't wait for the next ones
Great guide, thanks a ton
Please I would like to find out. If a larger glass can be used for the lamp
You can, but its not overly safe. The risk of the headspace catching fire increases as the container gets bigger, as does the consequences if you knock over the lamp.
@@SuiGenerisBrewing Okay. Thank you
Does passing the tube and cap through the flame so quickly kill off the organisms enough well?
Yes, so long as the surfaces are dry
Sui Generis Brewing Thank you.
Would heads saved off homebrew sprits work? Its approximately 90% alcohol.
I would think so, but I've never tried it before. So long as it gives a consistent, soot-free flame it should be fine.
Can you use alcohol tolerant yest to make the alcohol for the lamp or would it not be pure enough
Ryan B it needs to be at least 70% alcohol to burn well, so without distilling its not possible to make your own.
Doesn't the alcohol evaporate by time when the lamp is not used?
+Das Kässpätzle Yes it does. Which is why I pour the alcohol back into a storage container (the blue-lidded bottle in the video) after each use.
Ah, ok, this makes sense. Thank you ;-)
I am curious, where did you get your jar for the lamp?
+MrGattor33 My wife's spice cabinet...prior to that, I think from Canadian tire. Its simply a glass spice container, sold (up here, at least) in many department and cooking stores. But any glass jar with metal lid will do - I've made them from baby-food jars and small jam-jars as well.
+Sui Generis Brewing
Ah ok, thank you. I was thinking of a baby food jar later on after I watched your video. Thank you for your reply and great videos. Very interesting also.
Glad they'd been helpful.
+Sui Generis Brewing
Yes indeedy, curious if you have any on harvesting the same strain of yeast if you understand what I mean?
+MrGattor33 Do you mean recovering a strain from a bottle &/or contaminated batch?
Did you salt your wick?
Getsmart Hypnosis No. The only reason to add salt is to improve the visibility of the flame. I probably should, just to make it more obvious in my videos, but there is no other pressing reason otherwise to do so.
What are you using for cotton? You generally want a tight weave; you also want only a minimal amount of material sticking out of the top - less than 1cm (the amount I have in the video is excessive). Too loose a weave, or too much of the wick sticking out of the burner, will lead to the rapid consumption of the wick.
A lot of people suggest using denatured alcohol. I'm concerned that whatever poisons that were added to the ethyl could cause contaminants or unhealthy combustion products. Could you shed light on this?
Hexane is usually what is added. Its modestly toxic, but should combust to the same products as ethanol (e.g. CO2/CO/water). Alternatively, you can use rubbing alcohol (isporopyl alcohol) or fondue fuel (methanol), both which should contain no adulturants and burn cleanly.
Interesting. Denatured is so much cheaper and more available.
I did just come up with another question regarding pouring plates: Is it possible to autoclave already poured borosilicate glass plates and slants? Seems like a much easier method than trying to pour plates aseptically if you have a good steam-height rack that fits the pressure cooker.
Thanks for the help.
@@SuiGenerisBrewing i noticed that the Isopropyl Alcohol I have at home is 70%. what percentage IsoP do I need for a lamp? (i think water is the other ingredient in the bottle i have)
@@oakbox12345 95%. Another option is methanol (AKA wood alcohol, AKA sterno, AKA fondue fuel).
@@SuiGenerisBrewing im gonna go check out the ACE hardware store 🙂
Is denatured alcohol okay to use?
Yep.
Can a candle or lighter do?
No, you need a larger flame than offered by a candle/lighter to generate the air circulation patterns.
@@SuiGenerisBrewing thanks. Am finding it difficult to get rubbing alcohol in larger quantities to burn as a lamp. Will say 3 tealight candles placed together or a paraffin wax lamp work?
@@marcuslim2222 I don't think combining candles like that would work. If you cannot find rubbing alcohol, alternatives include methanol (often sold as wood alcohol or fondue/chafing dish fuel), sterno, or even >85% ethanol.
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Can I use Benzine?
I have no idea
I use to have a lantern that used cleaning benzine.