According to the famous 1970s television commercial, the answer to how many licks it takes to get to the center of a Tootsie Pop is "three." The animated owl in the ad bites into the candy on his third lick, reaching the center immediately after being asked by a young boy. However, scientific studies and student experiments conducted over the decades have consistently proven this number to be far from the truth in real-world conditions.
The Cultural Legacy of the Iconic Advertisement
For generations, the question "How many licks does it take to get to the center of a Tootsie Pop?" has served as a quintessential piece of pop culture trivia. The commercial, which first aired in 1970, features a young boy approaching various animals to ask the question. A cow, a fox, and a turtle all offer excuses or suggest asking someone else, eventually leading the boy to an owl.
The owl, voiced by actor Paul Frees, attempts to answer the question but finds himself unable to resist the temptation of the candy. He manages only three licks before his patience runs out, and he bites directly into the lollipop, reaching the chocolate center. The narrator concludes the ad with the famous line: "The world may never know." This clever piece of marketing successfully cemented the Tootsie Pop as a snack associated with curiosity and persistence, but it also inadvertently launched a decades-long pursuit of a more accurate empirical answer.
Scientific Investigations and Real-World Variables
While the owl represents a cartoonish approach to the problem, various academic institutions and individual researchers have attempted to quantify the actual number of licks required to reach the center of the candy. Because "licking" is not a standardized physical movement, there is significant variance in the results obtained by different studies.
Factors Influencing the Result
Reaching the center of a Tootsie Pop involves dissolving the hard candy shell through mechanical abrasion and chemical dissolution. Several variables impact how quickly this happens:
- Saliva Composition and pH: Every individual has a different saliva composition, which affects how quickly the sucrose-based hard shell breaks down.
- Lick Pressure and Friction: The force applied by the tongue is not uniform. Some individuals utilize a broader surface area of the tongue, while others focus pressure on a singular point, leading to faster penetration.
- Ambient Humidity and Temperature: The storage conditions of the lollipop prior to consumption can alter the hardness of the candy, affecting its structural integrity.
- Tongue Texture: The papillae on the human tongue provide a rough, abrasive surface that functions similarly to sandpaper. The density and configuration of these structures vary by person.
Reviewing Empirical Data from Academic Studies
Several high-profile attempts have been made to solve the puzzle, most notably by engineering students at Purdue University and the University of Michigan.
At Purdue University, researchers developed a "licking machine" designed to mimic the human tongue. This mechanical device, which used a hydrated tongue-like surface to simulate licking, concluded that it takes approximately 364 licks to reach the center. This experiment eliminated the human element of fatigue, which often causes people to stop licking and start biting once their tongue becomes dry or sore.
In a separate study conducted by the University of Michigan, students were asked to manually lick the pops. Their results were lower, averaging around 411 licks. The disparity between the machine and the human subjects highlights the difficulty of establishing a universal constant. Human testers experienced breaks, varying tongue angles, and differences in bite pressure, all of which contribute to the final count.
Comparative Data Overview
The following table summarizes the findings from various non-official trials conducted to determine the average number of licks.
| Experimenter | Method | Average Licks |
|---|---|---|
| The Owl (1970 Commercial) | Animated / Immediate Bite | 3 |
| Purdue University | Mechanical Licking Machine | 364 |
| University of Michigan | Human Test Subjects | 411 |
| Swarthmore Junior High | Human Test Subjects | 144 |
| Independent User Averages | Various | 250β800 |
The Mechanics of Dissolution
To understand why the number varies so wildly, one must look at the chemistry of the Tootsie Pop. The hard shell is a mixture of sugar, corn syrup, and artificial flavorings. As the tongue licks the surface, the moisture in the saliva begins to dissolve the crystalline structure of the sugar.
When a person licks the same spot repeatedly, they create a small crater. As this crater deepens, the surface area exposed to saliva decreases, which can actually slow the rate of dissolution. If the licker consistently hits the same spot, the center is reached faster. If the licker roams across the surface of the candy, the progress is distributed, resulting in a much higher lick count. This phenomenon explains why personal testing often yields wildly different results than controlled mechanical experiments.
Common Misconceptions About the Advertisement
One of the most persistent misconceptions is that the ad was intended to provide a scientific answer. In reality, the 1970 commercial was a brilliant exercise in brand identity. By focusing on the frustration of the owl and the impossibility of the task, the company created a situation where the "answer" was secondary to the "experience" of eating the product.
Many consumers also believe that the Tootsie Pop itself has changed over the years, affecting the lick count. While the recipe has remained largely consistent, manufacturing tolerances mean that some lollipops may be slightly thicker or thinner than others. A difference of even one millimeter in shell thickness can add or subtract dozens of licks from the final total.
Practical Guidance for Conducting Your Own Test
If you wish to test the "how many licks" theory for yourself, accuracy requires maintaining strict control over your variables. To achieve a result that you can measure reliably, follow these procedural steps:
- Uniformity: Select a single Tootsie Pop from a fresh package to ensure the shell has not been compromised by humidity.
- Tracking: Use a mechanical clicker or a digital counter to record every touch of your tongue against the surface of the candy.
- Consistency: Focus all licking on a single focal point on the side of the lollipop. Do not rotate the candy.
- Observation: Maintain a constant, rhythmic pressure. Avoid biting at any point, as this will immediately invalidate the test.
- Recording: Stop immediately the moment the soft, chewy chocolate center is breached.
Be aware that human fatigue is a significant factor. If you find your tongue becoming dry or sore, the experiment is likely to be interrupted, which will skew your data. Many participants report that after 200 licks, the tongue becomes sensitive, which can alter the pressure applied and thus the effectiveness of the dissolution process.
Frequently Asked Questions
Does the flavor of the Tootsie Pop change the result?
While all Tootsie Pops have a similar sugar-based shell, minor variations in acidity levels across different flavors (such as cherry versus chocolate) can theoretically impact the rate of dissolution. However, in practice, these differences are negligible compared to the variables introduced by the human tongue.
Is the owl in the commercial a real bird?
No, the owl in the 1970 advertisement is a traditional hand-drawn animated character. The commercial was produced by the agency Donino & Wolfe and was designed to be whimsical rather than educational, which is why the owl gives up so quickly.
Why do some people report over 1,000 licks?
High results usually occur when the subject is not concentrating on a single point of impact. If you move your tongue around the entire circumference of the lollipop, you are essentially shaving off tiny amounts of candy from the entire surface rather than digging a hole to the center, which significantly increases the total count.
Are there any health risks associated with a "lick test"?
Licking a hard candy for an extended period can lead to temporary tongue irritation or minor abrasion from the high sugar concentration and the rough texture of the candy. It is recommended to perform this test in short intervals rather than in one single sitting to avoid discomfort.
What is the primary cause of the discrepancy in experimental results?
The primary cause is the lack of a standardized definition for a "lick." Because every participant has a different tongue morphology and different levels of saliva production, it is impossible to create a universal scientific standard for the act.
Final Recommendation
If you are attempting to settle this age-old question for your own satisfaction, aim for a controlled experiment rather than a casual attempt. By using a counter and maintaining a single point of focus, most individuals will find that the "truth" lies somewhere between 300 and 500 licks. However, the most accurate takeaway from the 1970 advertisement remains the narratorβs final observation: the quest for the center is often more entertaining than the destination itself. Whether it takes you 300 licks or 600, the experience of the process is the true hallmark of the Tootsie Pop brand.
