Swiss police said they have seized more than a ton of cocaine hidden inside a shipment of coffee beans.

The workers at the subsidiary that makes the coffee capsule alerted authorities on Monday to the presence of the white powder that was found when they were unloading bags of beans from Brazil.

The entire shipment was blocked and seized by the police as part of their investigation.

The substance did not come into contact with any of the production equipment used to make our products. The company said that as a police investigation is underway, they cannot give more details.

Cocaine and coffee bags seized at the Nespresso plant in Romont, Switzerland are seen in this handout picture taken at an unknown location and released May 5, 2022 Police Cantonale Fribourg via Reuters

The police said the powder was 80% pure and destined for the European market with an estimated street value of $50 million.

Coffee transactions can be difficult to trace, according to a commodities expert.

A container of green coffee beans from Ethiopia is unloaded at the Nespresso production plant, part of food giant Nestle, in Romont, Switzerland Denis Balibouse/Reuters

If you are buying oil futures or options on the financial market, all of those trades are registered somewhere. He said in a recent Odd Lots podcast that there is a trade repository.

He said that you don't have to disclose anything if you buy oil, metals, agricultural commodities on the physical market.