Abstract: Described herein are methods of producing plant products and plant production facilities equipped to produce the same on a large-scale. The methods and facilities provide for sprouting directly on a solid growing surface with embedded temperature control, which maximizes independent control of each batch of sprouts or plant products. The embedded temperature control system generally comprises one or more heat transfer conduits for flowing a heat transfer fluid therethrough. A seed spreader device may be used to deposit a bed of plant seeds at a substantially uniform height across the growing surfaces. Advantageously, the simplified design is more cost-effective and can be easily understood, used, and repaired by the average farmer or livestock operator.