Carlson Roasting Company / Mini Donut Lab Carlson Roasting Company / Mini Donut Lab Business: Carlson Roasting Company / Mini Donut Lab City: Houston Description: Carlson Roasting is an artisan coffee tasting room with a Mini Donut Lab located in downtown Houston, MN. Phone: 507-459-1951 Website: carlsonroasting.com Category: Eat, Houston Tags: Coffee