Aluminum cans have become a go-to package for brands that care about product quality and sustainability. But liner conversations can get messy fast, especially online. One of the most common claims we hear is that every can liner contains BPA. It sounds definitive, and it can feel like a dealbreaker. In reality, can liners are selected based on beverage chemistry and performance needs, and BPA is not automatically the default. If you zoom out, the real story is about fit, function, and making smart decisions with the right specs in hand.

 

The Myth

All aluminum can liners contain BPA.

 

The Reality

BPA-NI (non-intent) liner systems are widely available and qualified for many beverages. The liner choice is driven by what is inside the can, not by a one-size assumption.

 

Why Liners Exist in the First Place

A can liner is a protective barrier between the beverage and the metal. It helps prevent corrosion, protects flavor, and supports shelf-life stability. The right liner helps your product taste the way you intended from first fill to last sip.

 

Product Chemistry Drives Liner Selection

Different beverages behave differently inside a can. That is why liner selection depends on factors like:

pH and Acidity
High-acid products need a liner that can handle that environment without compromising taste or performance.

 

Alcohol Content and Formulation

Higher ABV products and certain RTD cocktails can require specific liner performance to maintain stability over time.

 

Citrus Oils and Flavor Extracts

Citrus oils, botanicals, and strong flavor extracts can be aggressive. They may demand a liner system designed for that chemistry.

 

Process and Shelf-Life Requirements

Pasteurization, hot fill, storage conditions, and desired shelf life all influence what liner system is appropriate.

 

Why This Matters

Blanket assumptions slow down decisions and can lead to the wrong choice. The right-fit liner protects taste, quality, and package integrity while supporting your broader sustainability goals. Aluminum is highly recyclable, and liner selection is about protecting the product without overcomplicating the package or the process.

 

A Practical Tip

When you brief prepress or kick off a new can run, include product specs upfront. The details that help us recommend the right BPA-NI or alternative system include ABV, pH or acidity range, and any key ingredients like citrus oils or extracts. The more we know early, the smoother your project goes.

At Can-One USA, we help brands match liner systems to real beverage chemistry, not assumptions. If you want our liner fit cheat sheet or want us to review your product specs for the best path forward, reach out and we will help you dial it in.