(CNN) British baking giant Warburton's has been forced to pause production of crumpets at two of its factories amid the ongoing carbon dioxide (CO2) crisis.

The UK's largest producer of crumpets had no choice but to halt output after it ran out of the gas, which it uses in its packaging to extend the shelf life of the product.

Similar to English muffins, crumpets are a staple of the British breakfast table or afternoon tea -- small savory griddle cakes that are toasted and doused in butter.

"As a result of the ongoing CO2 shortage, we are producing nowhere near the 1.5 million packs of crumpets we usually make each week and have had to suspend production at a number of our bakeries," said Tearmh Taylor, corporate and consumer affairs manager at Warburtons.

"This will remain the case until the CO2 supply returns to normal. But, rest assured we are working really hard to keep our products on Britain's shelves," she said.

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