Back to Show
Reactions
How Do Hand Sanitizers Work?
Season 4
Episode 35
The labels always read, "Kills 99.99% of Germs!" but does the science of hand sanitizers back it up? Today Reactions takes a closer look at the chemistry of what this goo is made of, and just how effective it really is against viruses and bacteria. Yay chemistry!
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.

15:58
Fluffy, delicious bread results when starch gelatinization and flour chemistry combine!

12:35
Join George (and, occasionally, Andrew) as they chart corn’s epic chemical journey.

10:46
We explore and learn anywhere between the 20 and 74,963 kinds of ice.

10:34
For years it was used in homicidal poisonings. We learn what made it so dangerous.

12:40
We explore brining and whether or not it makes a different when cooking the turkey.

15:23
We dive into the science to figure out how to make gummies without the side effects.

18:01
There are a few obstacles to overcome before we get there.

13:15
Come along on George’s epic journey into the wilds of salt science!

9:41
Weeds are building a defense against today's herbicides.

17:15
We explore how far carbon structures are from revolutionizing the world.

14:45
We dig into the science of flavor pairings, especially when it comes to the famous combo.

10:39
Can a medicine cause a war? The treatment for Malaria may just have.