The Ketchup Prank

jon October 23, 2011 23

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DISCLAIMER: This prank is intended for personal use on those overly sensitive persons with low self-esteem, no sense of humor, and bowel issues.  These pranks are unsuitable for victims with weak hearts, small bladders, queasy stomachs and expecting mothers. can not be held responsible for your victims reactions or damage / injury that may or may not happen to yourself or property.


  1. paypal April 24, 2011 at 1:47 pm - Reply

    Awesome prank! I probably wouldn’t try this one, but I’d love to see it done in someone else’s kitchen!

  2. bea April 25, 2011 at 4:56 am - Reply

    this is nonsense as no one shakes ketchup bottles

    • manda May 6, 2011 at 2:27 pm - Reply

      for real.

    • Loralei May 14, 2011 at 4:52 pm - Reply

      …Everyone shakes up ketchup bottles..

    • ang May 15, 2011 at 2:54 am - Reply

      i do…and so does everyone i know…otherwise their is a watery liquid on top

      • revooh June 15, 2011 at 1:07 am - Reply

        well then your not using heinz like you should

        • jim June 24, 2011 at 9:22 pm - Reply

          Heinz is just like other ketchup, it still has water on top unless u shake it. buncha fucks.

  3. Matt April 25, 2011 at 5:31 am - Reply

    @bea, um, yes they do. I know right before i open a bottle of ketchup there is that watery liquid that sits on the top of the ketchup, so I shake the bottle two or three shakes. Just a habit now. However, after seeing this I will be more cautious now. LOVE THIS!

  4. andrea April 25, 2011 at 5:33 pm - Reply

    And what stops the vinegar from reacting with the baking soda immediately.

    • wat January 10, 2012 at 1:03 am - Reply

      It doesnt foam right away cause its a small surface area of the baking soda on the ketchup, so only a little will react with the vinegar to start with. It says to be careful not to shake for that reason. Then when they shake and it mixes in more baking soda mixes with the ketchup and the pressure increases and it pops. You probably wouldnt want to leave it for more than a few minutes before they open it though.

  5. fajas colombianas April 25, 2011 at 5:45 pm - Reply

    I think people dont shake ketchup bottles. Maybe they would shake it a little but it wont be enough to trigger an explosion that huge.

    • shawnabcdefg May 16, 2011 at 9:14 am - Reply

      I dunno man, someone could get me so good with this. As I always shake the shit out of the ketchup bottle before I use it.

  6. jon April 25, 2011 at 6:01 pm - Reply

    Hey, Prankked here, I love all the talk about it, but I think it might clear up a few questions, if you tried this one yourselves. Like @fajas, on how many shakes does it take to get an explosion of that magnitude. (by the way, for this graphic, I shook that ketchup bottle up and down 4 times when it began to expand the bottle so much I put the bottle down and quickly walked away. Haha, when it blew it’s top.) Or @andrea, what keeps the baking soda from reacting right away, as long as you don’t mix, or shake the bottle, it will be just fine, which is why it’s important to just let the ketchup from the sides cover the baking soda. However, I would HIGHLY recommend performing this one outside. It’s a lot more powerful than I had thought it would be. Took me over 3 hours to clean the kitchen and part of the dinning room after it went off.

    Have fun!!

  7. Paw Print Pet Tags April 26, 2011 at 1:39 am - Reply

    Yuck! I hope my kids don’t see this website. and if they do, I hope they don’t mind cleaning ketchup off every surface in the kitchen.

  8. Young Bat April 27, 2011 at 10:19 pm - Reply

    Bea – have you never heard that old rhyme, “Shake and shake the ketchup bottle, nothing comes and then a lottle?”

  9. david April 28, 2011 at 12:44 am - Reply

    so what happens if they have the new no spill lids that’s going to be a lot more pressure build up wouldn’t it.

    • Tom April 29, 2011 at 4:18 am - Reply

      This is an extremly valid point,but if u look closley at the last pic of the exploded bodle u notice that i has a very narrow spout,not much wider than a no spill lid, you could cut out the little things(no spill things)instide the spout to give it the same potential preasure shown in the last pic.

  10. Mindy Mindburger April 28, 2011 at 5:29 am - Reply

    Are you kidding me?? This prank is golden. I can’t count the times guys go for the ketchup, give it a few hard shakes (without paying attention mind you)and pour it as fast as they can so they can cram down their dogs..

    Anyone who says other wise lives under a f**king rock.

  11. Valeria April 30, 2011 at 3:54 am - Reply

    I had this happen WITHOUT adding any baking soda. I had made homemade ketchup and put it in an old ketchup bottle. I got tired of it and forgot about it leaving it in the fridge. Months later, my buddies ran out of ketchup and a guest found a bottle in the back of the fridge. Of course he shook it up ( since it looked watery) and went to open it. several loud screams later and the ceiling looked like bloody ax murders had just happened. I can imagine that the my homemade mix fermented and made it’s own gas powered eruption and it reached the ceiling and the florescent kitchen lightbox. We didn’t have a ladder so it stayed there till we moved out. wonder if the landlady ever noticed?

  12. Health complex July 27, 2011 at 6:08 am - Reply

    I actively dislike pranks and I find this one funny as hell. Kudos

  13. Me July 29, 2011 at 1:27 pm - Reply

    Wouldn’t try with a glass bottle though…

  14. hank September 15, 2011 at 5:20 pm - Reply

    Ha thats cool. You can do a similar one with diet coke and mentos. Pour out a little of the coke, tie a thread around the mints and put them into the bottle, with teh end of the thread sticking out. Put the lid back on and it will hold them in place, until someone opens the bottle

  15. Dave September 21, 2011 at 5:29 am - Reply

    It would foam out as soon as you put the baking soda in, the only prank would be on the person cleaning up after you run away screaming like a little girl.

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