McKenna vs Oliha: Brewing Methods Clash in the Coffee Community The coffee world has been abuzz with debate over two popular brewing methods: McKenna and Oliha.
At the heart of this controversy is John Hickey, a renowned coffee connoisseur and critic who has sparked heated discussions among enthusiasts with his scathing reviews of various brewing techniques.
A Brief History of Hickey's Coffee Controversy John Hickey's reputation precedes him within the coffee world.