Two of the world's biggest brand names, known for wooing customers around the world, are facing a credibility crisis in one of their crucial emerging markets.
This month, India's Center for Science and the Environment announced that drinks manufactured by Coca-Cola and PepsiCo contained on average more than 24 times the safe limit for pesticides, which could come from sugar, water and other ingredients.
When those reports appeared on the front pages of newspapers in India, Coke and Pepsi executives expressed confidence that they could handle the situation, but they have stumbled since.
They underestimated how quickly events would spiral into a nationwide scandal, misjudged the speed with which local politicians would seize on an Indian environmental group's report to attack their global brands, and did not respond swiftly to quell the anxieties of their customers.
Three weeks later, Coke and Pepsi are still struggling to win back the confidence of consumers. Partial bans on their products remain in a quarter of India's states, and a complex legal battle to overturn the bans is just beginning. The companies acknowledge that things have not gone smoothly.
The battle offers a cautionary tale for multinational corporations doing business in developing countries, especially one like India, where the market for soft drinks is about US$1.6 billion, with Coke holding about a 60 percent market share.
In some ways, the immediate response from Coke and Pepsi came right out of crisis management textbooks.
The companies formed committees in India and the US, working in tandem on legal and public relations issues. They worked around the clock fashioning rebuttals. They commissioned their own laboratories to conduct tests and waited until the results came through before commenting in detail.
Their approaches backfired. Their reluctance to give details fanned consumer suspicion. They became bogged down in the technicalities of the charges instead of focusing on winning back the support of their customers.
"They got behind the curve, and now they are chasing the crisis," said Richard Levick, president and chief executive of Levick Strategic Communications, which is based in the US and specializes in advising businesses in crises.
Coke and Pepsi executives have said repeatedly that their soft drinks meet "international standards" but concede this is a difficult fight.
"We have some way to go to restore consumer confidence in our brands," said Kari Bjorhus, Coca-Cola's communications director.
Rajeev Bakshi, chairman of PepsiCo India, agreed. "Has our side of the story got across to the consumer yet? Not really. I am concerned about that."
On Tuesday, the companies got a lift with the publication of a study by India's health ministry that said the Center for Science and Environment's findings did not conclusively prove that the soft drinks contained pesticide residue.
The center, however, was skeptical. "The minister of health is clearly more concerned with industrial health -- and not people's health," it said in a statement.
At the start, both companies were unprepared, when one state after another in India announced partial bans on Coke and Pepsi products, preventing the drinks from being sold in government offices, hospitals, and schools. Politicians exploited the populist potential.