In Germany, a study by the national consumer watchdog Stiftung Warentest revealed that a third of the 19 brands of extra virgin olive oil tested failed to meet the necessary standards, with only two brands passing the test. This decline in quality has been attributed to factors such as climate change and poor Mediterranean harvests, leading to rising retail prices and quality issues. Retailers like Edeka and Kaufland have responded by recalling several products. Boutique olive oil seller Ehrenberger highlights the importance of quality control and direct producer relationships, noting the challenge of educating consumers about olive oil quality amidst a market dominated by large retailers selling inferior products. The situation underscores the need for improved cultivation and processing practices in the olive oil industry.