Automated pretzel lye application system
In high-volume bakeries, manually applying lye to pretzels and other baked goods is inefficient and labor-intensive. Ensuring consistent application, while maintaining speed and quality, is a significant challenge for bakery operators.

Fully automated lye application
The Comjet from WP Riehle is an advanced system designed to automate the lye application process for products like pretzels, lye rolls, and croissants. This system takes dough pieces automatically from roller or peelboards, minimizing labor requirements. The patent-protected lye shower ensures consistent results regardless of production speed, and the machine’s adjustable band speed allows for customized production rates. A robust glass touch panel centrally controls all functions and components, making operation straightforward. With a lye tank capacity of either 180 or 250 liters, equipped with a fill level sensor and heater for constant temperature, the Comjet ensures optimal lye results. Optional features include a WP scoring robot for post-application cutting.
Benefits
- Reduces manual labor, increasing efficiency
- Consistent lye application for high-quality results
- Adjustable band speed for flexible production rates
- Easy operation with a central glass touch panel
- Optional robot integration for cutting after lye application