It's mind-blowing to think this stuff is in our food!  Here's how to make a glowing "magical mud" from ordinary potatoes.

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Step 1: Watch the Video!

WARNING: This substance can make quite a mess, so make it in an area that will be easy to clean up. It's non-toxic, and perfectly ok to eat in small quantities, however, use of video content is at own risk.

<p>What if the waters brown?</p><p>Does that mean its not going to work???</p>
<p>it is okay if the water turns red or brown just </p>
<p>no it probably still work or continue stirring</p>
<p>Can you add iron fillings to it?</p>
<p>how can i get enought of the white liquid.. cuz i did it but i barely see the white liquid and i use a whole bag of potatoes.</p>
<p>My daughter wants to use magic mud experiment for a science fair project. She needs to include a graph or a chart for the project. Does anyone have any ideas on what to put on the graph or chart?</p>
<p>does this really work</p>
<p>You could purchase a highlighter pens for neon green, pink and other colors. Break it open and put little amount in and it would have different colours? Just an idea!</p>
<p>does it work...have u tried it</p>
<p>No I have not... but obviously neon high lighters do glow under black light. Raves and such. </p>
<p>Clever! :D</p>
<p>Just not gonna be eddible. </p>
<p>brown colour does not appear... wat to do... need urgent help pls</p>
<p>how hot does water have to be, because i put the kettle on and i stopped it half way so the water wouldn't be boiling. I put the water into the boal with the chopped potatoes and the colour went really light brown. It's see through, so would it still work</p>
<p>How long do you have to stir it? And when I did stir it, the water stayed clearish,not brown. I'm I doing something wrong? Help.</p>
Coolest thing ever
<p>this is a amazing idea</p>
<p>what do u use?</p>
I need your name for my science fair I'm doing this for science fair !!!i need last first and middle initial
<p>did you know why it reacts like this? i want to use this in my science fair too but i have no idea why it reacts in that way</p>
<p>I made it and it keeps solidifying </p>
<p>That's what happens when you push on it or theres not enough water</p>
<p>what happens if the liquid is brown</p>
<p>what makes it turn into pouder</p>
<p>Leaving it out too long</p>
<p>how to make this without tonic water?</p>
<p>Basically you do the step and if it dries out just add water again :)</p>
<p>what is the cornstarch recipe?</p>
<p>half cup water, one cup cornstarch.</p>
<p>Dose it really work ??</p>
<p>what happens if the liquid is brown</p>
That's amazing
<p>what is the magic powder??? </p>
<p>corn starch</p>
<p>That is amazing how did you figure this out?</p>
<p>how much potatos you use for making this magic mud</p>
<p>You could make this a lot, lot, lot simpler by just buying some corn starch or either potato starch directly from the store. It does not matter what use Starch is Starch. Then just take over from adding the seltzer water. But i can see if you have some potatoes going bad this would do okay.</p>
<p>This is EPIC</p>
misuse of the word epic but ok kiddo
<p>Oh do explain ye old grammar nazi</p>
<p>Awesome! I'll be trying it out... But I'll peel the skin so the solid residue is eatable.</p>
<p>Ah yes a Starch Based Non-Newtonian Fluid, very cool.</p>
<p>You are the best, king. Always enjoy your posts. Keep'em coming.</p>
I AM IMPRESSED!! And I know what we're doing after school today! Can't wait to try this with my kids and with the potato waffle idea.. Looks like dinner is sorted as well! <br>Thanks for sharing!!
<p>nice ill have to make this :)</p>
<p>Thanks for sharing this, it is awesome.</p>
<p>refreshingly different take on the cornstarch moon mud, interesting that tonic water glows in the dark</p>
<p>Actually, I've already seen your quick clip showing this one. I am just praying for a DIY. Awesome and nice one. Keep it up.</p>