Did you know: Why soft drinks bottles have curves and ridges

Take a walk around any beverage shelf, and you will notice that most soft drink bottles are not straight—they are curved, contoured, or ribbed. While these shapes add visual appeal, they are also rooted in science and branding.

The most famous example is Coca-Cola's iconic contour bottle, introduced in 1915. It was designed to be instantly recognisable, even in the dark or if shattered into pieces, helping consumers distinguish it from imitators. Over time, the distinctive silhouette became one of the brand's strongest visual assets.

Today, curves serve several practical purposes. These features make bottles easier to grip, especially when condensation forms on the surface. The ridges and contours also strengthen lightweight plastic bottles, allowing manufacturers to use less plastic without compromising durability. This reduces material costs while making bottles more resistant to crushing during transport and handling.

For brands, the bottle itself has become part of the product's identity. From Coca-Cola's signature curves to Pepsi's wave-inspired design, the shape of a bottle is often as memorable as the logo it carries, proving that packaging can be just as powerful a branding tool as advertising.