Mad Scientist Potion

When I was in Kindergarten, I remember our Halloween party so clearly. One of the room moms brought apple juice and dry ice for a witch’s brew and it has stayed with me to this day (I say that like I’m not 30…and if you think 30 is old, then I am sad and hope no one calls you old when you’re 30. Or maybe I do…) Even though it was just apple juice and a black plastic cauldron, we were all blown away.

Fast forward 17 years to my senior year of college when I was doing a presentation on Frankenstein and I brought the same magic potion to a room full of college kids. And they had the exact same reaction as we did when we were in Kindergarten. After that, it kind of became my “thing”; I am voluntold every year that I will be bringing the drink to the classroom Halloween parties and that it will be Witch’s Brew and that everyone is very excited. And by “everyone,” I mean the teachers.

This year, I decided the witch’s brew is fun and cute, but we should up the ante. Mad scientist style. Now…I’m going to show you guys some tricky techniques here and I need you to stay with me and not be scared or intimidated about what we’re going to do. Note: the sarcasm button is broken on my keyboard right now, so this is my way of telling you that there is nothing tricky and going on here. I also really want you to not send me hate mail and leave mean comments that I’m pretty much giving you a step-by-step photo tutorial on how to make Kool Aid. We are in the throes of full-fledged holiday/sick kid/book-writing/dog-ate-husband’s-dinner-then-got-sick chaos/laundry-is-reproducing-in-the-living-room-at-an-alarming-rate crisis at our house right now and I imagine I’m not the only one, so this is a super-easy way to knock the socks off your kids (and make their friends think your kid has the coolest mom ever).

You’ll need some glass jars (I got these apothecary jars at Walmart for under $10 apiece–2 1-gallon jars and 1 2-gallon jar, but you can always grab some on Amazon), drinks of your choice (I used Kool-Aid because it’s cheap and the kids who will be drinking it care WAY more about the “potion” than the fact that it is not even remotely gourmet, but you could use Sprite flavored with Jello, Hawaiian Punch, or anything else you can think of, even if it involves food coloring), and dry ice. There are lots of misconceptions about dry ice (who knows, some of them may be true in some places), but these are my experiences:

-Dry ice is not outrageously expensive. It’s about $1 a pound and you’ll need about 1 pound per gallon of potion.

-It’s not sold everywhere, but it’s not terribly hard to find, either. I used this Dry Ice Directory to find a place close to me that sold it. I live in a fairly small town in the middle of Louisiana and I found two grocery stores within 10 minutes of my house that sold it.

-It doesn’t keep for very long. Storing it in your freezer for a few days is not the best idea–you’re likely to open up the bag and find nothing there. I try to buy it at the very last minute and then keep it wrapped up in towels, paper bags, and an insulated cooler until I’m ready to use it.

-It will hurt you if you’re not careful. You need heavy-duty gloves or even an oven mitt and some tongs. Don’t let your kids play with the brew unsupervised (although it’s pretty funny to watch your dog bark at and then hide from the dry ice clouds).

Place the Kool-Aid and sugar (or whatever drink you’re using) in the jars.

Fill the jars with water and mix well. See, I told you this was tricky.

Carefully (if I were REALLY smart and safe, I’d wear goggles, but my version of living dangerously involves breaking dry ice with a meat mallet and no safety goggles) break the ice into chunks that are roughly 4-6 inches long/wide somewhere. Basically, just try to not get them too small or leave them too big. Place one piece at a time into each jar, saving the rest to refresh the bubbling potion effect later.  Another option, to be safe and not accidentally ladle dry ice into individual cups, is to place the juice containers inside of a larger glass container that contains just the dry ice and some water. That way it bubbles all around the beverage you’re drinking, but not in it.

I’m serious, kids and adults alike will freak out. It’s pretty fun.

Serve immediately.

If you’re patient, you can even offer to play the mad scientist and mix flavors together for the adventurous kidlets. Not super appetizing, but they’re kids and you’re (probably) mixing fruity flavors and not Sprite, Coke, Root Beer, and Mountain Dew or some other ghastly double-dog-dare combination.

clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Mad Scientist Potion


This fun “Mad Scientist Potion” is perfect for a spooky party!


  • Large glass jars or beverage containers
  • Brightly colored drink of your choice
  • Dry Ice (1 pound per gallon of potion)
  • Heavy-duty gloves and/or an oven mitt and tongs


  1. Prepare drinks if necessary in the beverage jars. Otherwise, pour the drinks into the jars.
  2. Carefully break up the dry ice with a mallet or a hammer. Add one piece (about 4-6 inches somewhere on the piece) per gallon at a time to the drink containers and replenish the dry ice as necessary. Serve immediately, ladling the juice into cups and leaving the dry ice in the large containers. If you want to be extra safe, just place the containers of juice inside another container where the dry ice is, so you don’t run the risk of ladling any dry ice into a cup.


  • Note: The 1 pound per gallon rule will give you about an hour’s worth of potion. If you need 2 hours, you’ll need 2 pounds per gallon, and on and on.
 *Disclaimer: this post includes affiliate links, which just means that when you purchase items through our links, we earn a small commission, which helps us keep working hard to create recipes for you!


  1. Ok so this is the pre-coffee, up way too late last night and then up too early in the morning brain asking…. so you can actually drink the beverage that has the dry ice in it? Because I so need to regain the cool points that I apparently lost on becoming mom to a teenager (a senior in high school no less the younger two teens still think I’m cool! especially if I make finger cookies and gourmet treats like lasagna with homemade noodles.)

    Thanks for the clarification!!

      1. Yeah, don’t go ingesting dry ice! That would be bad. 🙂 That’s why it’s important that you don’t break the pieces too small. When you’re ladeling it up, if you see a little white spot that’s bubbling and “smoking,” dump it out and try again. They’ll be easy to spot–it’s not like regular ice where you could miss it.

        1. I think this is really a cute thing for a party. BUT, for some reason, I don’t feel safe with dry ice going into something, even Kool Aid, I think this could actually make a child sick.

          Katie says in her reply, yeah, don’t go and ingest it. Tell that to a child and the will, thinking it will do its foaming thing in my belly.

          I heard of putting it as a display for Halloween but never in a drink. I have to think long and hard about this one.

          1. Dry ice is just frozen carbon dioxide. You are basically carbonating a beverage this way. The only reason you don’t want to eat an actual piece of the dry ice is because it is soooo cold and not made of water. Have some safe fun with it! 🙂

      2. I was wondering the exact same thing…. how quick does it melt?? I guess I am a worrier, but I would be scared it would burn some unsuspecting child…. but it does look awesome!!

        1. We did this when I was young for our family Halloween. But our cauldron was a 10 gallon water jug with a spicket (does anyone use that word anymore? )Anyway, someone painted it black and put big round eyes on it and we all thought it was awesome. The spicket made sure that we didn’t ingest any of the ice and it bubbled for ever!!! It was great!

  2. My dad always used this technique with homemade root beer for ALL (and I mean ALL) our holiday ward parties. A big hit every time. But, like you said, you can use ANY type of drink. I’ll have to dig deeper into finding dry ice. I’ve always been hesitant to “play with it” but really…I should get over it.

  3. I love this easy idea. Also, our Walmart even has a dry ice box next to the regular ice box….just in case others are looking for a place to check. =)
    I may just use this idea at our Halloween parties this weekend!

  4. Silly question, but do you just ladle the potions out of the jars into cups for the eager children? So fun, I love this idea!

  5. We just did the “regular” brew (apple juice and dry ice) at my grandson’s party last Saturday but he was SO excited when he first saw the magic. Think how much more excited he would have been if it had been a Mad Scientist Potion instead! But, it was in our pretty green bottles, so there was that going on!

Leave a Reply

Your email address will not be published.

Recipe rating


This site uses Akismet to reduce spam. Learn how your comment data is processed.