A CO2 shortage is just another problem for food suppliers.

Tegel is concerned about New Zealand's shortage of carbon dioxide gas

Beer, fizzy drink, sparking wine, cheese, preserved meats, ready-to-eat meals and healthcare products could also be affected by the ongoing shortage.

Supie Founder Sarah Balle told Mike Hosking consumers might not find their favourite products at the supermarket in the next few months.

She says we know CO2 is used to extend the shelf life of products.

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