If you have ever sat at a diner table with a classic glass Heinz ketchup bottle, tipping it at increasingly desperate angles while your french fries go cold, you were missing something that has been printed on the bottle the entire time. The number 57 embossed on the neck of every glass Heinz bottle is not just a brand marking or a historical reference. It is a functional instruction — a sweet spot that, when tapped firmly with the heel of your hand, releases the ketchup cleanly and quickly without the thumping, shaking, knife-fishing, and bottle-smacking that most people resort to. The fact that almost nobody knows this is, at this point, one of the most widely shared condiment secrets in culinary history — and yet most people are still doing it the hard way.
[adinserter block=”5″]
What the 57 Actually Does
The trick is straightforward. Hold the glass Heinz bottle at approximately a 45-degree angle, with the opening pointed down toward your plate. Locate the embossed 57 on the neck of the bottle — not the label lower on the bottle, but the number raised into the glass itself where the bottle narrows. Apply a firm, sharp tap directly to that spot with the heel of your hand or two fingers. The ketchup will flow. Heinz has confirmed this directly — a company spokesperson told TODAY Food in 2017 that the 57 on the neck is specifically the sweet spot, and that tapping it firmly where the bottle narrows releases the ketchup significantly more easily than striking the bottom of the bottle or shaking it. The Heinz FAQ section on the company’s website has also noted this trick explicitly, describing it as something very few people know.
The physics behind it are the same principles that make tapping any viscous liquid container at the right point effective. Ketchup is a non-Newtonian fluid — specifically a shear-thinning fluid, which means it behaves like a solid when no force is applied and like a liquid when stress is applied. Striking the bottle at the narrow neck point where the ketchup is most concentrated creates a pressure wave that travels through the contents and breaks the ketchup’s resistance to flowing more effectively than hitting the base, where the force disperses before reaching the ketchup column above it. The 57 marks exactly the spot where this effect is most reliably produced.
Where the Number 57 Actually Comes From
[adinserter block=”7″]
The number’s origin is a story about marketing instinct overriding literal accuracy, which is fitting for one of the most enduring brand numbers in food history. Henry John Heinz, the company’s founder, came up with the slogan “57 Varieties” in 1896 after seeing a train car advertisement for a shoe company promoting 21 different styles. The concept of a specific number implying breadth and variety stuck with him, and he adapted it for Heinz products. He chose 5 because it was his own favorite number and 7 because it was his wife’s — and combined them into 57, which he felt had a satisfying ring to it. The number was never literally accurate. By the time Heinz adopted the slogan, the company already sold more than 60 distinct products. Today it sells well over 5,700. But 57 stuck in the culture in a way that a more accurate number almost certainly would not have, and the slogan became one of the most recognized in American food history.
What is interesting is that a number invented as a marketing gimmick subsequently became a functional feature of the product itself. The 57 embossed on the glass bottle neck is not just decorative — its specific position at the narrowest point of the glass bottle transforms it into a user instruction, an embedded guide for getting the most out of the product. A marketing decision made in the 1890s became, over the following century, a practical piece of product design that most users never noticed.
A Brief History of Heinz Ketchup
Ketchup itself has a considerably longer and stranger history than most people realize. The word traces back to a fermented fish sauce from southeastern Asia — historians believe it entered English usage via trade routes from southern China and Vietnam, and early British ketchup recipes from the 1700s bear little resemblance to the tomato-based condiment that became standard. Tomatoes were not added to ketchup recipes until the early 1800s, and even then, early tomato ketchup had a thin, vinegary consistency far removed from the thick, smooth product Heinz eventually perfected.
Henry John Heinz began selling bottled horseradish in 1869 and added ketchup to the Heinz product line in 1876. The company’s innovation was in consistency and preservation — Heinz ketchup used a higher concentration of tomatoes, vinegar, and sugar than competitors, which produced a product that was both more flavorful and more shelf-stable. The iconic glass bottle with its narrow neck and distinctive shape became a retail standard in the late 19th century and remained essentially unchanged for over a hundred years. Heinz introduced plastic squeeze bottles in 1983, which largely eliminated the stuck-ketchup problem for home consumers — but glass bottles persisted in restaurants and diners, where they are still preferred for their aesthetic, their durability, and the argument, made by some condiment purists, that glass better preserves the flavor of the ketchup inside.
Other Ketchup Tricks That Actually Work
The 57 trick is specific to glass bottles. For plastic squeeze bottles that have become sluggish — particularly when nearly empty — the most effective approach is to store them upside down so gravity does the work of keeping ketchup near the opening. Many newer Heinz plastic bottles are designed with the cap at the bottom for exactly this reason. For glass bottles when the 57 trick alone is not quite enough, combining it with the 45-degree angle is essential — the angle is not optional. Holding the bottle fully upside down defeats the mechanism by sending the ketchup away from the neck; the 45-degree position keeps it pooled near the narrow point where the tap does its work. A brief swirl of the bottle before tipping it can also help, loosening ketchup that has thickened near the glass walls.
If you find yourself at a diner table with a glass Heinz bottle anytime soon, the process takes about three seconds: tilt to 45 degrees, find the 57 on the neck, tap firmly once with the heel of your hand. Your fries will still be hot. The people across the table will look impressed. And you will finally have gotten something useful out of a number that was invented, over a century ago, simply because it sounded good.
[adinserter block=”6″]