A Brief Look at the Technological Characteristics of a Resilient Biscuit Production Line
The resilient biscuit production line is a highly efficient and automated equipment specifically designed for producing resilient biscuits, widely used in the food processing industry. It features a novel design, compact structure, and high degree of automation, completing the entire process from feeding to rolling, forming, waste recycling, drying, oiling, and cooling in one continuous operation. The main equipment includes a dough mixer, forming machine, control cabinet, baking oven, oiling machine, and cooling machine. The dough mixer is used to mix the raw materials evenly; the forming machine uses molds to shape the dough into various biscuit blanks; the baking oven uses a mixed furnace (direct combustion and hot air circulation combined heating), automatically maintaining constant temperature and pressure to reduce energy consumption, and is equipped with emergency stop switches, automatic alarms, and other safety devices; the oiling machine evenly sprays oil onto the biscuits; and the cooling machine rapidly cools the biscuits for easy packaging.
Technical characteristics of the resilient biscuit production line:
1. Dough processing
High extensibility requirement: Resilient biscuits require dough with good extensibility to achieve uniform thickness and texture during forming.
Low-Temperature Mixing: Low-temperature mixing (usually ≤20℃) prevents fat melting and maintains dough elasticity (for butter-based cookies, temperature-controlled mixing is necessary).
Multiple Pressing and Folding: The dough is repeatedly pressed using roller presses and folding machines to create a multi-layered structure, enhancing the crispness and texture of the cookies.
2. Shaping Methods
Stamping: The dough sheet is stamped into specific shapes (e.g., round, square) using a stamping machine, resulting in clear edges and uniform density.
Cutting: The dough sheet is cut into continuous or intermittent strips or sheets using a roller cutter (e.g., egg rolls, ladyfingers).
Molding: Custom molds are used for irregularly shaped cookies (e.g., animal shapes, alphabet cookies).
3. Baking Process
High-Temperature Short-Time Baking: Baking temperature is typically 220~280℃ for 5~15 minutes to quickly set the shape and lock in moisture, resulting in a golden-brown surface and a porous, airy interior.
Hot Air Circulation Design: The oven is equipped with a forced hot air circulation system to ensure even temperature distribution and prevent localized burning or undercooking. 4. Cooling and Packaging
Forced Cooling: After baking, the cookies are rapidly cooled through a cooling tunnel (air cooling or natural cooling) to prevent residual heat from causing them to soften.
Automated Packaging: Pillow-type packaging machines or bag-feeding machines are used for individual or multi-pack packaging. Nitrogen-filled preservation technology can be used to extend shelf life.