Bagels get their distinctive ring shape through a hands-on forming process that starts with portioning stiff dough into individual balls, shaping each one into a ring, and then boiling the rings briefly to lock in their structure before baking. There are two main hand-shaping methods, and commercial bakeries also use machines that can form thousands of bagels per hour. But the principles are the same: create a tight ring of dense dough with a hole wide enough to survive proofing and boiling.
Why Bagel Dough Is Different
Before shaping even begins, the dough itself matters. Bagel dough is notably stiffer and drier than most bread doughs, with a hydration level of 55% to 65%. For comparison, a typical sandwich bread or artisan loaf runs 65% hydration or higher. This low moisture content is what allows the dough to hold a clean ring shape without sagging or spreading.
New York-style bagels with an intense chew typically call for high-gluten flour with at least 14% protein. Flour with more modest protein (around 12%) still works but produces a softer, more open crumb. The high protein and low water create a dough that’s tough to knead but structurally resilient, which is exactly what you need when you’re about to boil bread.
Two Hand-Shaping Methods
Professional and home bakers generally use one of two techniques. Both start with dividing the dough into portions. A standard bagel starts as a piece of dough weighing about 100 to 110 grams before boiling and baking. Small bagels run about 75 grams.
The Poke Method
This is the simpler of the two. You shape each portion into a smooth, tight ball, let it rest until it relaxes and puffs slightly, then push your thumb straight through the center. From there, you twirl the dough around your fingers, gradually stretching the hole until it’s about 2 inches in diameter. The key is making the hole wider than you think it needs to be, because the dough will shrink back as the gluten pulls it together, then expand again during boiling and baking. If you don’t stretch it wide enough, those two forces combine to close the hole entirely, leaving you with a bagel ball instead of a ring.
The Rope Method
For this technique, you roll each piece of dough into a rope about 8 to 10 inches long. A good approach is to start by rolling one hand back and forth in the center of the log, which thins the middle and creates a shape that looks slightly like a dog bone, with thicker ends. You then wrap the rope into a circle, overlapping the two ends by an inch or so, and roll the overlapping section against your palm or the counter to seal it.
The rope method gives bakers more control over the ring’s thickness and hole size, but it introduces a seam where the ends meet. That seam is the weak point. If it’s not sealed properly, the bagel will split open during proofing or boiling. Mix-ins like raisins make this problem worse because they interrupt the dough’s surface. For beginners, the poke method is more forgiving since it creates a seamless ring.
Proofing Locks In the Shape
After shaping, bagels need time to rise, but not too much. Many bakers use cold proofing: the shaped rings go into the refrigerator for around 12 hours, typically overnight. The cold temperature slows the yeast down dramatically, so the dough rises slowly without becoming slack or losing its structure. This is also practical since all the shaping work happens the evening before, and the only task left the next day is boiling and baking.
Hydration plays a role here too. A dough on the wetter end of the bagel spectrum (around 65%) can’t handle a long proof without becoming too slack to hold its shape. Drier doughs are more forgiving over time. Under-proofing creates its own problem: the bagels will spring too aggressively in the oven and puff into balls rather than maintaining their flat ring shape.
Boiling Sets the Crust
The step that separates bagels from every other bread is the boil. Shaped, proofed bagels go into a pot of simmering water, typically for about 30 seconds on each side. The water bath usually contains malt powder and a bit of sugar, which contribute to the bagel’s characteristic glossy, slightly sweet crust.
Boiling does two things for the shape. First, the outer layer of starch gelatinizes almost instantly, forming a thin skin that acts like a shell. This skin prevents the bagel from expanding much further in the oven, which is why bagels are dense and chewy rather than fluffy. Second, the brief cook firms up the ring’s structure so it can handle being transferred to a baking sheet and slid into a hot oven (typically around 210°C or 410°F) without deforming.
How Machines Do It
Commercial bakeries producing thousands of bagels a day use dedicated forming machines. An industrial bagel former like the AM Manufacturing BF-100 can produce up to 4,800 pieces per hour. The machine works by feeding dough through forming tubes that wrap it around a central post called a mandrel. The mandrel determines the hole size, and it can be adjusted vertically so the bagel comes out symmetrical. If the top of the ring is thicker than the bottom, the baker raises or lowers the mandrel to compensate.
The basic mechanics mimic the rope method: dough is extruded into a strip, wrapped into a loop, and sealed. A belt system moves each formed ring off the mandrel and onto a conveyor. The result is consistent sizing and shape at a speed no human hand could match, though many bagel purists argue that machine-formed bagels lack the slightly irregular texture and tight surface that hand shaping produces.
New York vs. Montreal Shapes
The forming process also varies by regional style. New York bagels are larger with a smaller hole and a thick, chewy body. Montreal bagels go the opposite direction: they’re smaller overall but have a larger hole relative to their size, with a denser interior and crispier crust. Montreal bakers traditionally use the rope method and hand-roll each bagel, which contributes to their slightly irregular, rustic look. The differences aren’t just aesthetic. Montreal bagels are boiled in honey-sweetened water and baked in wood-fired ovens, which changes the crust, but the shaping itself produces a thinner ring that crisps more evenly.
Common Shaping Mistakes
The most frequent problem is a hole that’s too small. Because gluten is elastic, the dough pulls back toward the center after you stretch it. Then during boiling and baking, the ring expands outward but the hole fills in. The fix is simple: stretch the hole noticeably wider than you want the finished bagel to look.
Weak seams on rope-method bagels are the other major issue. A poorly sealed overlap will crack open during the boil, releasing internal pressure and creating a lopsided or blown-out shape. Rolling the overlap firmly against the work surface, rather than just pinching the ends together, gives a much stronger bond. Some bakers lightly dampen the ends before overlapping to help them stick.
Finally, using too much yeast or mismeasuring small quantities (four grams of yeast is easy to get wrong on a standard kitchen scale) can cause the bagels to over-rise and lose their tight, dense structure. A micro scale helps, but so does the cold-proof approach, which gives you more control over how much the dough expands before it hits the water.