Advanced Throwing Techniques · Collaring & Narrow Necks

Building a Bottle in Three Stages

A bottle is really three forms stacked into one: a wide, rounded body at the bottom; a shoulder that curves inward; and a narrow neck at the top. Each stage requires different techniques.

Stage 1: Throw the Body

Open and pull the walls to create a wide cylinder or rounded form: the body of your bottle. Leave the walls slightly thicker than usual near the top, because you will be collaring that clay inward and it needs the extra mass.

Stage 2: Create the Shoulder

Using gentle inward pressure from the outside, begin collaring the top of the cylinder inward to form the shoulder curve. Move slowly. The shoulder should curve gracefully; abrupt angles at this stage are hard to fix later.

  • Keep the wheel spinning at a medium speed during this stage.
  • Support the outside of the shoulder with one hand while using the other to guide the curve inward.

Stage 3: Throw the Neck

Once the shoulder is established, continue collaring to draw the opening up into a neck. At this stage, the opening is narrow enough that you must work entirely from the outside.

  • Use two or three fingers wrapped around the neck to guide the clay upward and compress it.
  • Keep the neck walls even in thickness: thin areas will wobble or collapse.
  • Finish the lip with a light pinch and smooth it cleanly.

The bottle is one of the most satisfying forms to throw. Take your time with the shoulder: that transition from wide body to narrow neck is what gives a bottle its character.

The Bigger Picture

The bottle form has been central to ceramics for thousands of years, from ancient earthenware storage vessels to the refined porcelain bottles of the Chinese Song dynasty. The shoulder curve that defines a bottle's character is a direct result of the collaring technique, and studying historical examples is one of the best ways to develop your eye for proportion.

Common Mistakes and Quick Fixes

  • Thin top walls before shoulder stage: Leave extra mass near the top at the start.
  • Abrupt shoulder transitions: Build shoulder curves gradually with controlled support.
  • Neck wobble from uneven thickness: Pause and even wall thickness before narrowing more.
  • Overworking the lip at the end: Finish quickly with light compression and stop.

Practice Exercise

Throw a three-bottle series with identical body width but different neck heights and shoulder arcs. Line them up and evaluate proportion. This develops shape judgment faster than repeating one profile blindly.

Check your understanding

1 / 2