Pop Rocks: History, Flavors & Trivia
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Snack History Nostalgia Rating: ⭐⭐⭐⭐☆
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| Pop Rocks | Facts |
|---|---|
| Introduced | 1976 (patented 1961) |
| Manufacturer | Zeta Espacial S.A. |
| Candy Type | Popping sugar candy |
| Original Flavors | Not specified in available records |
| Still Available | Yes |
| Country of Origin | United States |
| Parent Company | Zeta Espacial S.A. (headquartered in Barcelona, Spain) |
| Originally Patented By | General Foods (William A. Mitchell & Leon T. Kremzner) |
Pop Rocks debuted in 1976, was dramatically pulled from shelves in 1983, and inspired widespread urban legends, giving it a strong nostalgic and cultural footprint among generations of candy fans.
Pop Rocks are one of the most well-known and popular candies in the US and this is for good reason. There are few candies that are this much fun to eat and you have been missing out if you have never tried this tasty and fun candy snack. Pop Rocks are an eating experience as much as they are an enjoyable candy and you will probably be enchanted by these popping snacks as soon as you try them out!
Pop Rocks candy comes in a variety of flavors and all of them are equally fun to eat. For those who know about the enjoyment of eating this special candy, the history of the brand might be less well-known. If you are ready to learn some more about this popular and exciting little candy snack, you need to read on!
Pop Rocks Timeline
- 1961 — Pop Rocks patented by General Foods chemists Mitchell and Kremzner.
- 1976 — Pop Rocks first sold commercially by General Foods.
- 1980 — Manufacturing process patent filed, detailing carbon dioxide pressurization method.
- 1983 — General Foods pulls Pop Rocks from shelves citing short shelf-life.
- 1983 — Kraft Foods licenses Pop Rocks name to Zeta Espacial S.A.
- Unknown — Zeta Espacial S.A. purchases Pop Rocks outright from Kraft Foods.
- Unknown — Marvin J. Rudolph publishes Pop Rocks: The Inside Story of America's Revolutionary Candy.
Pop Rocks vs Cosmic Candy (Popping Rocks)
| Feature | Pop Rocks | Cosmic Candy (Popping Rocks) |
|---|---|---|
| Texture | Small rock crystal candy that pops and crackles in mouth | Similar popping sugar crystal format |
| Introduced | 1976 | Introduced during same era as Pop Rocks by General Foods |
| Manufacturer | Zeta Espacial S.A. | General Foods (original maker) |
| Key Gimmick | Pressurized CO2 released causing popping sensation | Similar carbonated popping candy mechanism |
| Availability | Widely available internationally | Limited; largely discontinued |
| Parent Company HQ | Barcelona, Spain | United States |
| Cultural Notoriety | High — urban legends, MythBusters feature, hotline set up by FDA | Low — largely remembered as a Pop Rocks competitor |
History
This candy is currently owned by Zeta Espacial S.A. Pop Rocks were originally patented by General Foods with the help of chemists William A. Mitchell and Leon T. Kremzner in 1961. The treat was not actually sold until 1976, despite the date of the patent for the process that makes them snap and pop in your mouth.
General Foods made the candy for a time and then pulled it from shelves in 1983 stating that its short shelf-life was a stumbling block for sales. If you have ever ended up trying to eat an older package of Pop Rocks or one that has gotten torn open just slightly, you can vouch for the sticky, gummy, and altogether unenjoyable nature of this candy when it has gone bad.
Kraft Foods licensed the candy to Zeta Espacial S.A. so that the candy could be made by the other company with the Pop Rocks name on it. Zeta Espacial S.A. eventually bought the candy product from Kraft and they are the current manufacturer and owner of the product. Their main distribution center for the candies is in Georgia but the home base for the company is actually in Barcelona, Spain. This company sells other items around the world that are similar such as Peta Zetas, Wiz Fizz, and Magic Gum.
Marvin J. Rudolph, who was part of the team that took Pop Rocks to manufacture when Kraft was making the product, wrote a book about the candy called Pop Rocks: The Inside Story of America’s Revolutionary Candy. This book told the story about the development of the unique candy that pops in your mouth and talked about the original marketing challenges that later led to the product being pulled from shelves. Rudolph says that part of the trouble that led to pulling the candy off of shelves was a flood of competitors’ products onto the market.
General Foods also made another product, called Cosmic Candy, that was similar and was in competition with Pop Rocks at this time. There continue to be copies of the candy that are made like the Popping candy that is made by HELKS and Cadbury’s Australian product called, “Marvellous Creations Jelly Popping Candy Beanies”. Despite the competition, this candy continues to be the most familiar of its kind and it has a large following in spite of the fact that it was pulled off shelves for a time.
Pop Rocks are made to pop and crackle in your mouth through a unique manufacturing process. The 1980 patent includes the process of dissolving candy sugars in water that is then evaporated at 320 degrees Fahrenheit. The water content is then 3% by mass. The product is cooled to 280 degrees Fahrenheit and then stirred constantly while adding pressurized carbon dioxide at 730 pounds per square inch.
The mixture is cooled under pressure until it solidifies. The resulting candy looks like small rock candy crystals and it generates the popping and crackling that the candy is famous for when the candy is eaten.
Urban Legends
Pop Rocks was rumored to cause your stomach to boil and explode if you ate it while drinking soda. This was due to an incorrect correlation between the ingredients in Pop Rocks and the common at-home science experiment where baking soda and vinegar combined with soda. The myth even was linked to a child actor, John Gilchrist, who was rumored to have died from combining Pop Rocks candy and soda in the same meal.
Seattle residents were so alarmed by this urban myth that the Food and Drug administration even set up a hotline in the city for those who were scared that their children might suffer harm from eating Pop Rocks and drinking soda. “Exploding Kid” rumors might have been part of why General Foods was so willing to pull the candy from shelves later on in its life. The company even had to release a letter to parents that stated that the candy was safe and did not contain enough gas to harm anyone who drank soda when they ate it.
This myth was tested on MythBusters by mixing Pop Rocks and soda in a pig’s belly. The belly did fill up with gas but it did not explode.
There were also other rather strange links between Pop Rocks and sexual acts when the candy returned to the scene after its licensing change. These seemed to vary depending upon who you spoke with and seemed never to be something that this person had tried, but the rumors persisted. Pop Rocks is a candy that is just different enough that it seems to have attracted all kinds of odd rumors and urban legends despite the best efforts of the candy’s producers to contest these ideas and stories.
Despite the many awkward stories and fears of exploding children over the years, there are many recipes that have been created to make Pop Rocks drinks, both alcoholic and non-alcoholic, and desserts and other baked goods which include the little popping candies. These vary in quality and success, but if you like to play around with fun baking and fun drink crafting processes, you might have fun trying these different cooking options out.
The candy is really best enjoyed when you simply eat it out of the bag and enjoy the popping experience and sensation in your mouth. There is really no need to get more creative with it than that and you will have a lot of fun enjoying this treat without having to try out or worry about all of its related urban myths.
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Buy Online
You can also buy Pop Rocks at Old Time Candy by clicking the image below.

Flavors
Pop Rocks are sold in these flavors:
- Strawberry
- Watermelon
- Blue Razz
- Tropical Punch
- Chocolate with a Kick
- Cherry
- Cotton Candy
- Grape
- Green Apple
- Sugar-Free Strawberry
Pop Rocks also sells popping gum and you can get Pop Rocks dips that are lollipops with the same popping properties as the other candy styles. The candies are sold in multi-variety boxes and bags as well if you want to try all of the different flavors that this candy comes in.
Ingredients
The All-City Candy listing for the candy in Strawberry lists these ingredients:
- Sugar
- Lactose (milk sugar)
- Corn Syrup
- Artificial flavor
- Artificial color (red 40)
- Processed carbon dioxide
The food coloring involved in some of the varieties can vary depending on the flavor. Most of the flavors are colored to look like what you would expect for green apple or blue raspberry candy and so on. This can lead to differing ingredients for the different colors. The basic ingredients are all the same, however.
Nutrition
| Serving Size: | 1 package (9.5g) | % Daily Value* |
| Amount Per Serving | ||
| Calories from Fat | 0 | |
| Calories | 34 | |
| Total Fat | 0g | 0% |
| Protein | 0g |
- Percent Daily Values are based on a 2000 calorie diet.
Livery
The candy has always been sold in some version of a dark-colored little foil bag that has large and colorful lettering on it. The bags show cartoon stars and little drawn explosions as well as the name of the flavor and the note, “Taste the Explosion”. The lettering and images on the bags are color-coded for the different flavors, so strawberry is red, green apple is green, and so forth.
This design has not changed since the assumption of the candy by Zeta Espacial S.A. either. The recognition factor that goes with the style of the bags and boxes was likely well-worth continuing with the old appearance of the brand’s livery, despite the fact that the candy was sold. Since Kraft did not market the product for all that long either, they were likely not too worried about there being any change to the wrappers and boxes to prevent confusion with the days that they marketed the candy.
There are many candies that have changed a lot in appearance when purchased by another entity, but Pop Rocks have been marketed and sold in much the same way ever since they hit the market. At the end of the day, the candy eating experience that this treat offers, speaks for itself. You really don’t need to say too much or show too much about the candy on the boxes and bags to get the point across about what this candy can do when you eat it.
Pictures
Commericals:
A classic ad:
A 90’s ad for the Action Candy version of the product:
Another newer ad:
Pop Rocks Taste Test:
FAQ
What makes Pop Rocks pop?
The secret behind that famous Pop Rocks candy “popping” sensation is u003cstrongu003epressurized carbon dioxide gas (CO2)u003c/strongu003e. Each of those tiny little candy pebbles contains a small amount of gas. When they burst free from their candy shells, these tiny gas bubbles make that irresistible popping sound.
How are Pop Rocks made?
To make Pop Rocks, the Kraft food company mixes up a batch of hard candy by heating up sugar, corn syrup, and flavor until it is a very hot liquid. Then they take the whole mixture and put it under pressure with carbon dioxide gas.
When did Pop Rocks come out?
“Carbonated Candy” was originally invented in u003cstrongu003e1956u003c/strongu003e by William A. Mitchell, a chemist at the General Foods company looking for a way to make instant carbonated soda by somehow trapping carbon dioxide into candy tablets.
What are Pop Rocks made of?
The All-City Candy listing for the candy in Strawberry lists these ingredients: Sugar, Lactose (milk sugar), Corn Syrup, Artificial flavor, Artificial color (red 40) and Processed carbon dioxide.
What are Pop Rocks?
u003cemu003ePop Rocksu003c/emu003e is a candy, owned by Zeta Espacial S.A.
Who invented Pop Rocks?
u003cstrongu003eWilliam A. Mitchell u003c/strongu003einvented Pop Rocks in u003cstrongu003e1956u003c/strongu003e.
Pop Rocks — Quick Facts
| Introduced | 1976 (patented 1961) |
| Manufacturer | Zeta Espacial S.A. |
| Candy Type | Popping candy |
| Country of Origin | United States |
| Parent Company | Zeta Espacial S.A. (headquartered in Barcelona, Spain) |
| Main Distribution Center | Georgia, USA |
| Still Available | Yes |
Snack History Nostalgia Rating: ⭐⭐⭐⭐☆
Pop Rocks were introduced in 1976, earned a discontinuation and comeback story when pulled from shelves in 1983 before being relicensed, and became deeply embedded in American pop culture through widespread urban legends and even an FDA hotline, all of which strongly fuel nostalgic association.
Pop Rocks Timeline
- 1961 — Pop Rocks were originally patented by General Foods, developed by chemists William A. Mitchell and Leon T. Kremzner.
- 1976 — Pop Rocks were first sold to the public by General Foods.
- 1983 — General Foods pulled Pop Rocks from shelves, citing a short shelf-life and a flood of competitor products as stumbling blocks for sales.
- 1980 — A patent was filed documenting the detailed manufacturing process for Pop Rocks, including the use of pressurized carbon dioxide at 730 pounds per square inch.
- Post-1983 — Kraft Foods licensed the Pop Rocks name and product to Zeta Espacial S.A., allowing the candy to return to market.
- Later — Zeta Espacial S.A. purchased the Pop Rocks product outright from Kraft Foods and became the current owner and manufacturer.
Frequently Asked Questions about Pop Rocks
Who invented Pop Rocks candy?
Pop Rocks were invented by chemists William A. Mitchell and Leon T. Kremzner while working with General Foods. The candy was originally patented in 1961, though it was not sold to the public until 1976. Their work developed the unique pressurized carbon dioxide process that gives Pop Rocks their signature popping sensation.
Who makes Pop Rocks today?
Pop Rocks are currently manufactured and owned by Zeta Espacial S.A., a company headquartered in Barcelona, Spain. Their main distribution center for the candy is located in Georgia, USA. Zeta Espacial originally licensed the product from Kraft Foods before eventually purchasing the brand outright.
Why were Pop Rocks taken off the market?
General Foods pulled Pop Rocks from shelves in 1983, citing the candy's short shelf-life as a major obstacle to sales. Author Marvin J. Rudolph, who was involved in the candy's manufacturing under Kraft, also noted that a flood of competitor products onto the market contributed to the decision. Urban legends about the candy causing harm may have also played a role in the company's willingness to discontinue it.
Is the urban legend about Pop Rocks and soda being dangerous true?
No, the urban legend that eating Pop Rocks while drinking soda causes your stomach to explode is false. General Foods addressed the rumor directly by releasing a letter to parents confirming the candy is safe and does not contain enough gas to cause harm. The myth was also tested on MythBusters by combining Pop Rocks and soda in a pig's belly, which filled with gas but did not explode.
How are Pop Rocks made to pop in your mouth?
Pop Rocks are made through a unique manufacturing process in which candy sugars are dissolved in water that is evaporated at 320 degrees Fahrenheit, reducing the water content to 3% by mass. The mixture is then cooled to 280 degrees Fahrenheit and stirred while pressurized carbon dioxide is added at 730 pounds per square inch. The mixture is cooled under pressure until it solidifies into small rock candy crystals, and when eaten, the release of that trapped carbon dioxide creates the popping and crackling sensation.
Frequently Asked Questions about Pop Rocks
Who invented Pop Rocks candy?
Pop Rocks were invented by chemists William A. Mitchell and Leon T. Kremzner, who worked for General Foods. The candy was patented in 1961, though it did not reach store shelves until 1976. Mitchell and Kremzner developed the unique pressurized carbon dioxide process that gives Pop Rocks their signature popping sensation.
Why were Pop Rocks pulled from store shelves?
General Foods pulled Pop Rocks from shelves in 1983, officially citing the candy's short shelf-life as a barrier to sales. However, author Marvin J. Rudolph, who was involved in the candy's production under Kraft, suggested that a flood of competitor products onto the market was also a significant contributing factor. The widespread urban legend about the candy being dangerous may have also played a role in the decision.
Is it dangerous to eat Pop Rocks while drinking soda?
No, it is not dangerous to eat Pop Rocks while drinking soda. The urban legend claiming the combination could cause a child's stomach to explode is false, and General Foods even released a letter to parents confirming the candy's safety. The myth was also tested on MythBusters, where mixing Pop Rocks and soda in a pig's belly caused gas buildup but no explosion. The FDA even set up a hotline in Seattle to reassure concerned parents.
Who makes Pop Rocks today and where are they based?
Pop Rocks are currently manufactured and owned by Zeta Espacial S.A., a company headquartered in Barcelona, Spain. Their main distribution center for the candy is located in Georgia, USA. Zeta Espacial originally licensed the Pop Rocks name from Kraft Foods before eventually purchasing the product outright.
How are Pop Rocks made to pop in your mouth?
Pop Rocks are made through a process where candy sugars are dissolved in water, which is then evaporated at 320 degrees Fahrenheit until the water content is 3% by mass. The mixture is cooled to 280 degrees Fahrenheit and stirred while pressurized carbon dioxide is added at 730 pounds per square inch. The mixture is then cooled under pressure until it solidifies into small rock-like crystals, which release the trapped CO2 when eaten, creating the iconic popping and crackling sensation.
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