| 摘要 |
An improved, non-fried expanded snack product is provided which is fabricated by extruding ingredients comprising a pasta flour followed by subjecting the extrudate to a two-step drying process. The extrusion process preferably makes use of a twin screw extruder and a slow screw rotation rate. Prior to each drying step, the product is agitated in air in order to reduce clumping of the wet material. The air agitation of the product should be carried out at temperatures which are less than the temperatures utilized in each of the drying steps, and preferably at ambient temperatures. The drying steps are preferably carried out in two separate drying apparatuses, and the air agitation comprises air conveying the product to each of the drying steps. A preferred air conveying device is a conventional cyclone separator.
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