DIY tip: mix hand sanitiser yourself

DIY hand sanitizing recipe

Don't worry, my blog will not become a "collection of grandma's home remedies" and I will not report daily about the coronavirus (COVID-19). For this type of information, from my point of view, the podcast "Corona virus update"With Christian Drosten the best point of contact. Christian Drosten is the head of virology at the Berlin Charité and the leading virus researcher in Germany. In the podcast, he and the science editors Korinna Hennig and Anja Martini from NDR report on the latest developments for 30 minutes a day Coronavirus.

But I have learned a practical everyday tip on the subject of Corona that I would like to share with you. For this reason, please excuse me if, for once, I report about it apart from Apple and smartphone.

Incredible, but true: hand disinfectant is currently even more difficult to obtain than toilet paper (photos: Sir Apfelot).

Incredible, but true: hand disinfectant is currently even more difficult to obtain than toilet paper (photos: Sir Apfelot).

Necessity is the mother of invention…

We live here in the north Hessian mountainous region and despite the Corona crisis we still have a modest selection of toilet paper available in retail outlets. With disinfectants, things are completely different. Here you only find empty shelves and so we were a really large family with a single half-empty bottle of hand disinfectant that we had been standing in the bathroom cabinet for ages. How long this lasted with the current "threat" can be calculated.

DIY idea: make disinfectants yourself

My wife finally came up with the idea that you could perhaps mix your own hand disinfectant from a canister of isopropyl alcohol (also known as isopropanol or 2-propanol for short) that we had bought to degrease oiled wood before painting.

The instructions that she followed can be found . in English. The author describes how she turned isopropyl alcohol and aloe vera gel into a reasonably skin-friendly disinfectant for the hands.

The ingredients for the hand disinfection recipe: isopropanol, aloe vera and a silicone travel tube (photos: Sir Apfelot).

The ingredients for the hand disinfection recipe: isopropanol, aloe vera and a silicone travel tube (photos: Sir Apfelot).

Liability

I am not a doctor and I do not want to offer medical advice. Real, medical skin disinfectants are certainly better and tested, but unfortunately they are in short supply in Germany. For this reason, I would just like to give you an incentive here on how you can perhaps help yourself out in an emergency. However, it is by no means to be understood as medical advice.

And another tip that is generally given by medical professionals: extensive hand washing with soap is always preferable to hand disinfection at home. So when you're at home, go to the sink instead of rubbing isopropanol on yourself - your skin will thank you for it.

Information from the "DIY Hand Sanitiser" manual

The basic guide sounds simple:

  • Mix 7 parts of pure alcohol with 3 parts of aloe vera gel.

But you have to pay attention to the details. For this reason, I have put together some interesting points from the English article that you should keep in mind:

  • Mix 7 parts of alcohol with 3 parts of aloe vera gel.
  • The aloe vera gel should be as pure as possible and without pieces (you will find such gels here at Amazon or here on eBay).
  • The alcohol can be either ethyl alcohol or isopropanol. Both should be at least 99% pure. You can find offers . and . on eBay (there is currently nothing on Amazon).
  • Please do not order 70% isopropanol, as this is too diluted!
  • There isn't a huge difference between the two types of alcohol, ethanol and isopropanol. As far as I understand, both work against microbes (including bacteria, viruses and fungi).
  • For the hand sanitizer to be effective against microbes, the final mixture must contain at least 60 to 70% alcohol.
  • Instead of aloe vera you could also use water, but the aloe vera gel counteracts the dehydration of the skin caused by the alcohol and ensures that the mixture adheres to the skin even better than water. However, it is absorbed after a minute and does not stick.
I ordered the "very good" tested aloe vera gel and I am very satisfied with it because it is really like gel and gives the hand disinfectant a gel-like consistency. In my opinion, cheaper aloe vera juices are far too liquid.

I ordered the "very good" tested aloe vera gel and I am very satisfied with it because it is really like gel and gives the hand disinfectant a gel-like consistency. In my opinion, cheaper aloe vera juices are far too liquid.

DIY disinfection more effective against viruses than hygiene spray?

Interesting side discovery: The contents of the hygiene products we bought include: 40g ethanol and 19g propan-2-ol per 100g. According to my calculation, I get 59% while scientific sources say that you need at least 60% alcohol in the mixture to kill viruses. Seen in this way, our do-it-yourself mixture with approx. 66% isopropanol should be more effective than the "hygiene spray", on which one would perhaps rather rely on the feeling. Perhaps for this reason it is not called "disinfectant spray", but "hygiene spray".

Personally, I would trust the hygiene spray less, because with 59% alcohol it is just below the limit of 60% that medical professionals require as the minimum concentration for effectiveness against viruses.

Personally, I would trust the hygiene spray less, because with 59% alcohol it is just below the limit of 60% that doctors require as the minimum concentration for effectiveness against viruses.

Safe storage of the DIY disinfectant

You don't think there is much to consider when it comes to storage, but the mixture is relatively fluid and has a tendency to volatilize. We once filled isopropanol in a spray bottle without a lid (only with a spray attachment). The next day the bottle was empty because all of the contents dissolved into thin air overnight.

My wife did some research on this and a Set with silicone bottles (89 ml and 60 ml content) found that are suitable for air travel. They are leak-proof and close almost 100%. As a test, I even made a mark on a bottle to see whether the content here becomes independent, but even after 24 hours I could not detect any change in the fill level.

With the silicone tubes, you always have the disinfectant where you need it without worrying about it leaking.

With the silicone tubes, you always have the disinfectant where you need it without worrying about it leaking.

Our conclusion on the homemade disinfectant

We are of course aware that the self-brewed remedies are more of a stopgap solution and they are probably no comparison to real, medical products. Nevertheless, we are happy to have at least something on hand when we do have to go shopping and want to disinfect our hands, cash or the door handle on the car afterwards.

Due to the addition of the aloe vera gel, the skin feels very pleasant after use and is not as brittle as after using pure alcohol. We reordered both ingredients today because we don't think that we can actually cover the coming weeks and months with the current amount.

Shopping list for 3 liters of hand disinfectant

To make things as easy as possible for you, I've linked the "ingredients" again with specific products so that you can order them easily and don't have to compare for a long time:

I would also recommend the aloe vera gel mentioned above, as it is really gel-like and so the mixture does not become so thin afterwards. With cheap aloe vera you often have very liquid products that do not give the mixture any firmness.

We have now distributed these small silicone bottles with hand sanitizers in the cars and at home so that you always have them to hand when you need to disinfect your hands.

By the way: We tried a mixture with inexpensive aloe vera, but it was difficult to dose with the silicone tubes because it was far too liquid. The Aloe Vera tested "very good" (eco test), provides a viscous result that is easier to squeeze out of the tube. As a result, there is significantly less sauté and less of the disinfectant wasted.

The silicone tube is leak-proof, but unfortunately a bit difficult to dose.

The silicone tube is leak-proof, but unfortunately a bit difficult to dose.

Appendix: Interesting FAQ on alcohol, viruses and hand disinfection

When researching I did an interesting site found, which actually discussed the question of whether you can disinfect yourself with vodka. The short answer is no, as the alcohol concentration in vodka is well below 60%.

In addition to this finding, there were other - sometimes surprising - facts:

  • While alcohol is effective against the coronavirus and some other viruses, it is less effective at killing certain viruses that do not have a viral envelope.
  • If 60% alcohol is good, one would think that 100% alcohol might be maximally effective. In fact, this is not the case with hand disinfection, as protein denaturation works faster if a little water is added. Likewise, pure alcohol would evaporate too quickly and not stay on the skin long enough to work properly.
  • Are hand sanitizers always the best choice against coronavirus? No, if you have the opportunity to wash your hands extensively with soap and water (30 seconds!), Then this is more effective than homemade disinfectants.
  • With hand disinfectants, the alcohol naturally evaporates faster than the other ingredients. This reduces the concentration of alcohol and at some point the mean falls below the 60% concentration. You should keep this in mind and possibly refill alcohol from time to time or make the mixture completely new.

If you have tips on how to deal with Corona or ideas on how to improve this disinfectant recipe, please leave a comment.

And above all: stay healthy!

Update March 2021: How are you doing in the corona pandemic?

A year has passed since the first version of this article. Have you prepared the mixture suggested above? How do you get through everyday life with the coronavirus in general? Or have you even been vaccinated? Feel free to leave a comment on the topic, because I'm always interested in what you have to say about the topics presented here!

I have also just checked the links to the suggested products given in this post - and they still work. The articles are still available. If you like hand disinfection with aloe vera, you can continue to do it yourself at home. 

In addition, stays healthy; and hopefully we will all have the pandemic behind us in a year (March 2022 at the latest) ...

-
Do you like my blog? Then I would be happy to receive a short review on Google. Easy leave something here for a moment - that would be great, thank you!

 

Effectively for free: iPhone 13 Mini and iPhone 13 deals with top conditions at Otelo - Advertisement

7 comments

    • Sir Apfelot says:

      Thanks for the hint! Both recipes contain glycerin and hydrogen peroxide. I don't know how easy it is to get these ingredients. I find the version with aloe vera more pleasant and lighter in terms of the ingredients, but that's definitely a matter of taste.

      • Kai-Uwe Schneider says:

        Hydrogen peroxide (3%) and glycerine are available in every pharmacy. Hydrogen peroxide can be used in many ways, for example for cleaning wounds or for canker sores in the mouth. Glycerine is very suitable for caring for door rubbers on cars. So you have multiple uses :-)

  1. I think this information is great and important! Thanks for that (even if it's "unrelated to the topic"!)
    But special situations sometimes require special measures!
    Greetings, Ellen

  2. Kirsten Sure says:

    How do you know ... ..Thank you for this great post! :) Greetings, Kirsten

Leave a Comment

Your e-mail address will not be published. Required fields are marked with * .