Cleaning Your Cans with Ionized Air or Water: What’s the Difference?

september 12, 2025

In beverage production environments, hygiene is everything. Before your drink even touches the can, the packaging must be completely clean to guarantee product quality, safety, and shelf life. Two of the most common methods to clean cans are water rinsing and ionized air cleaning.

While water rinsing has been the traditional choice for many breweries and beverage producers, ionized air is quickly becoming the preferred method due to its efficiency, sustainability, and long-term benefits. But what exactly sets these two approaches apart, and which one is the best fit for your canning line?

In this blog, we’ll explore the differences between cleaning cans with ionized air and water, compare their advantages and disadvantages, and help you decide which solution is right for your operation.

Why cleaning cans matters

Before cans are filled and sealed, they pass through multiple stages of production, handling, and transportation. Along the way, they can collect dust, debris, metal and most common: cardboard debree from slipsheets, these can leave behind tiny cardboard particles that end up inside the cans.

If these contaminants are not removed, they can affect both the safety and quality of the final product.

Image 1. Can with carton snippers before cleaning

Cleaning your cans with water

water rinsing has been the standard method for cleaning beverage cans. The process is simple: each can is sprayed or rinsed with water to remove dust, cardboard particles, or other small contaminants before it enters the filler.

Advantages of water cleaning

The main advantage of water cleaning is its low investment cost. It is easy to set up, and for many producers, it has been the go-to method for years. Water rinsing also does a decent job of removing visible debris, such as dust or tiny cardboard fibers that often come from slipsheets during transport.

The drawbacks of cleaning your cans with water

Despite being affordable, water cleaning introduces several challenges. After rinsing, droplets remain inside the cans, which increases the risk of dilution or contamination once the product is filled (see picture). The rinse water itself is not always perfectly clean; if it contains microorganisms, it can carry bacteria straight into the product. Another issue is oxygen: since water naturally contains dissolved oxygen, it can reduce product stability and shorten shelf life. Beyond these hygiene risks, water rinsing consumes large amounts of fresh water, which makes it costly and environmentally unfriendly. Finally, the excess water on the production floor creates a wet, messy, and sometimes unsafe working environment.

Image 2. Can after water cleaning

Cleaning your cans with Ionized air

Ionized air cleaning is done by air jets combined with ionization. The ionized air neutralizes static electricity inside the can, which allows dust, cardboard fibers, and other particles to be released more easily. The high-pressure air then blows the contaminants completely out of the can, leaving it clean and dry before filling.

Advantages of Ionized air cleaning

The biggest advantage of ionized air cleaning is that it leaves no residues behind. Unlike water rinsing, it removes all debris without introducing moisture, which means there is no risk of dilution, bacterial growth, or oxygen contamination. Because it is a dry process, it also eliminates the messy side effect of wet floors and creates a safer, cleaner working environment. Another strong benefit is that no water is wasted, making the process more efficient and practical in day-to-day production. In the long run, this method often leads to lower operational costs and fewer production issues.

The drawbacks of cleaning your cans Ionized air

The only real drawback of ionized air cleaning is the higher upfront investment. The technology is more expensive to purchase than a simple water rinsing system. However, for many breweries and beverage companies, this cost is quickly offset by the benefits of improved hygiene, reduced downtime, and long-term savings on water and maintenance.

Image 3. Can after Ionized air cleaning

Conclusion: Choosing the Right Method for Your Canning Line

Both water rinsing and ionized air cleaning serve the same purpose: preparing cans so they are safe, clean, and ready for filling. Water rinsing is a low-cost, familiar option that effectively removes dust, but it comes with significant downsides such as residual moisture, bacterial risks, oxygen exposure, and high water usage.

Ionized air cleaning, on the other hand, is a more advanced and reliable solution. By using dry ionized air, it ensures cans are completely free from both debris and water. This eliminates the risks associated with traditional rinsing. While the initial investment is higher, the long-term benefits include improved hygiene, fewer production issues, and a cleaner workspace. This makes ionized air the smarter choice for breweries and beverage producers that value consistency and efficiency.

In the end, the decision depends on your production goals. If you are aiming for short-term savings, water rinsing may suffice. If you want a future-proof, hygienic, and efficient cleaning process, ionized air cleaning is the clear winner.

To make the difference visible, we have placed three cans side by side

Without rinsing

Water rinsing

Ionized air rinsing

Want to learn more?

Reach out today and discover how the right cleaning solution can improve hygiene, efficiency, and product quality in your beverage production.