Piping Tips Guide: What Each Shape Does

A piping tip is a small metal or plastic cone whose opening shapes everything that passes through it. The same buttercream comes out as a smooth dot, a ridged rosette, a ruffled petal or a pointed leaf depending only on the tip. Learning a handful of shapes covers almost every decoration on cupcakes, cakes, cookies and pastry.

Tip numbers can be confusing because brands use different systems, so a number from one maker may not match another. This guide groups tips by the shape of their opening, gives widely used reference numbers from the common American numbering system, and suggests a short starter set.

Round tips

Round tips have a plain circular opening. Small ones, roughly sizes 1 to 4, write letters, pipe dots and outline cookies with royal icing. Medium ones such as a size 10 or 12 make beads, borders and simple swirls. Large ones, like the 1A or 2A, pipe smooth domes on cupcakes, meringue kisses, and choux pastry for profiteroles and eclairs.

Round tips are also used for filling, as in piping cream into a hole cut in a cupcake, and for macaron batter, where a smooth, even flow matters more than texture.

Star tips: open and closed

Star tips have notched openings that give ridges. Open star tips, such as the 1M or 21, have wider-set prongs and pipe defined ridges for rosettes, stars and shells. The 1M is the familiar cupcake swirl tip.

Closed star tips, such as the 2D, have prongs that curve inward. They create deeper, tighter grooves, giving a drop-flower or ruffled look. A large closed star suits whipped cream and stiff buttercream on cupcakes and also pipes spritz cookie and churro shapes.

• 1M open star: classic cupcake swirl, rosettes
• 21 open star: shells and smaller stars
• 2D closed star: deep-ridged swirls and drop flowers
• Large French star (many fine teeth): elegant eclair tops and meringues

Petal, leaf and ruffle tips

Petal tips have a teardrop-shaped slit, wide at one end and narrow at the other. The 104 is the standard for roses, ruffles and swags; hold the wide end down for a petal that thins toward the edge. Leaf tips such as the 352 have a V-shaped notch that pipes pointed leaves with a center vein.

Basketweave tips, like the 47, have one flat side and one ridged side for woven patterns and ribbons. These tips take practice and a stiff, smooth buttercream that holds edges.

Specialty and filling tips

The grass tip, often a 233, has many small holes and pipes fur, grass and textured borders. A long, narrow Bismarck tip such as the 230 slides into doughnuts, cream puffs and cupcakes to inject filling. Russian or flower tips pipe a whole flower in one squeeze; they work best with firm buttercream and a confident, straight lift.

Drop flower tips and multi-opening tips are fun extras, but most decorating can be done with round, star, petal and leaf shapes.

A starter set and how to use it

Begin with a large open star, a large round, a small round for writing, a closed star, a petal tip and a leaf tip. Add a coupler for small tips, which fits inside the bag and lets you swap tips while it is full. Large tips usually drop straight into the bag without a coupler.

Frosting consistency affects the result as much as the tip. Stiff frosting holds sharp ridges; soft frosting smooths them out. If a rosette slumps, chill the filled bag for a few minutes or add a little more powdered sugar to an American buttercream.

• Cut the bag tip so about a third of the metal tip shows
• Hold the bag at 90 degrees for stars and dots, at an angle for shells and leaves
• Squeeze from the top of the bag, not the middle, for steady pressure

Common questions

Why does the same tip number look different between brands?

Manufacturers use their own numbering. A number 1M from one brand may be very close to a 2110 or similar from another. Compare the opening size and prong count when replacing tips.

Do I need a coupler?

Only if you want to switch small or medium tips on one bag. Large tips usually sit directly in the bag, and many decorators use a separate bag for each tip anyway.

How do I clean piping tips?

Soak them in hot soapy water to loosen fat, then scrub inside with a small tip brush. Dry them fully before storing so metal tips do not rust at the seams.