20ft Sourdough Donut Trailer, Casper, WY

Twenty foot sourdough donut trailer built by Mile High Food Trucks for Wyo Donut Company, Casper, Wyoming, curb side with the full wrap

A twenty foot sourdough donut trailer delivered to Wyo Donut Company in Casper, Wyoming, built around a proofing cabinet, a flat donut fryer and three times the usual hot water.

A donut kitchen washes more than it fries. Glaze and sourdough dough stick to every tray and bowl and the three compartment sink gets refilled all morning, so this trailer carries a twenty gallon water heater instead of the usual six to eight, with a thirty gallon fresh tank, a forty gallon grey tank and a separate hand sink.

The kitchen runs as a line along one wall: stand mixer, proofing cabinet on casters, flat donut fryer under a six foot Type 1 hood with wet chemical suppression, then the table under the window for glazing and boxing. An Atosa two door reach in at the back holds sheet pans of dough flat overnight. Two service windows, a six foot by three foot and a five foot with an outdoor shelf, give an order lane and a pickup lane for the morning rush.

FRP walls and ceiling, diamond plate floor, the heavier insulation and plywood package for Casper winters, a rooftop air conditioner with heat, a 125 amp panel with twelve outlets and a Westinghouse 12,500 watt dual fuel generator in a generator box. The fryer, mixer and proofing cabinet were supplied by the owner.

Twenty foot sourdough donut trailer built by Mile High Food Trucks for Casper, Wyoming
Cook line inside the donut trailer with the flat donut fryer and stand mixer under the Type 1 hood
Donut trailer with both service windows open and the awning up

Full build write up, the hot water decision and Casper licensing detail

Skills

Posted on

October 1, 2026