Joshua Helmuth, is an artisan coffee roaster (since 1999). An American from Colorado, but have been residing in Amsterdam since 2001. His company, Caffé Dolce Alchemia (Sweet Alchemy); is geared for sustainability and free information exchange on the coffee roasting side of the industry.

Joshua is a member of OSHWA (Open Source Hardware Association) and he is currently working to develop an Open Source Roaster, which he expects will help to bring the technology to coffee producing regions around the world.

He strongly believes in giving his knowledge freely helps to make the world a better, fairer place for everyone to prosper while creating a balance with nature, free from waste and pollution; therefore leaving the world in a better condition for the next generations.