Steam Whistle Brewing cans now have a feature to keep the top squeaky clean – a purity seal.

The purity seal is foil liner that covers and protects the top of Steam Whistle’s beer cans. The seal ensure that the top of the can remains free of potential contaminants it may pick up during shipping and storage before purchase.

The beer itself is free of preservatives and additives and is also free of waste, with the foil top being 100 per cent recyclable.

“When you take a case of Steam Whistle home, we want you to enjoy it as fresh and pure as it was when it left our brewery,” said Tim McLaughlin, vice-president of marketing for Steam Whistle. “Our purity seal ensures that your can remains free of potential contaminants it may pick up during shipping and storage before you buy it.”

The cans with the purity seal began appearing in stores in late February, and should be in every store that sells Steam Whistle by spring.