A consumer advocacy group has filed a lawsuit against Starbucks, claiming the company’s stance that its coffee is ethically sourced is false and misleading.

The National Consumers League cited media reports of abuses on farms that supply coffee and tea to Starbucks.

The group said the cases cast doubt on Starbucks’ packaging, which says the company is “committed to 100% ethical coffee sourcing”.

Starbucks said on Wednesday it is aware of the lawsuit and will “aggressively defend against the asserted claims”.

The claim was filed in the Superior Court in the District of Columbia.

Among the incidents cited in the lawsuit is a 2022 case in which police rescued 17 workers — including three teenagers — from a coffee farm in Brazil where they were made to work outdoors without protective equipment and lift 130lb sacks of coffee.

The case was covered by Reporter Brasil, a group of journalists investigating workers’ rights and environmental issues.

Starbucks said on Wednesday it had no information about that case.

“We take allegations like these extremely seriously and are actively engaged with farms to ensure they adhere to our standards,” the company said.

The lawsuit also cites a 2023 report by the BBC exposing rampant sexual abuse and gruelling working conditions on the James Finlay tea plantation in Kenya.

James Finlay was a supplier to Starbucks at the time, but Starbucks said on Wednesday it no longer buys tea from that plantation.

Starbucks buys around 3% of the world’s coffee.

The company says it works with 400,000 farmers in more than 30 countries.

Starbucks developed ethical sourcing guidelines in 2004 and uses third parties to verify conditions at its suppliers.

The company says it has zero tolerance for child labour and requires farmers to provide a safe, fair and humane working environment.

But the National Consumers League said Starbucks is misleading consumers by failing to disclose that its certification programme does not guarantee ethical sourcing.

The group is asking the court to stop Starbucks from engaging in deceptive advertising and require it to run a corrective ad campaign.

“Starbucks’ failure to adopt meaningful reforms to its coffee and tea sourcing practices in the face of these critiques and documented labor abuses on its source farms is wholly inconsistent with a reasonable consumer’s understanding of what it means to be ‘committed to 100% ethical’ sourcing,'” the group said in its court filing.