A shipment of sriracha has ended up packing more than a punch of chilli.

News.com.au reports that some $300mn of ice was smuggled into bottles of the cult-favourite hot sauce.

The discovery was made by Australian Border Force officers on October 15 at a Sydney freight depot and four men have been arrested.

“During a subsequent deconstruction it was found to contain 768 bottles of sriracha chilli sauce, with presumptive testing returning a positive indicator for methylamphetamine (ice),” NSW Police said in a joint statement with the ABF today.

“A preliminary forensic analysis determined the bottles contained about 400kg of methylamphetamine, which has an estimated potential street value of more than $300 million.”