Indirect extrusion puffing technology involves process, equipment selection, or operational management issues in food processing and production equipment.The actual solution should be confirmed based on raw material characteristics, target product specifications, production scale, and on-site conditions, and should not be determined solely by single equipment parameters.

Key Points of Indirect Extrusion Puffing Technology

Working principle: The raw material is cooked inside the extrusion puffing machine and pushed through the die at a temperature below 100°C, forming a dough-like material at low temperature, thereby preventing the moisture in the material from instantaneously vaporizing and causing puffing.The puffing process of the product is mainly completed through baking or frying after extrusion.In this process, the raw materials are treated by the extrusion puffing machine to achieve only a cooked and semi-solidified state, and are given a specific shape.Meanwhile, to improve product quality and achieve a more uniform texture and more thorough gelatinization, the extruded semi-finished products are held under constant temperature and humidity conditions for a period of homogenization before undergoing subsequent processing such as baking or frying.The process flow of indirect extrusion puffing technology is mainly as follows:

Feeding → Forming → Drying → Extruding → Packaging → Extruded Snacks

Compared with direct-extrusion puffed foods, indirect-extrusion puffed foods typically exhibit more uniform structure, better texture, non-stickiness to teeth, more complete starch gelatinization, and easier control of puffing degree, making them more popular in the market.

Jinan Dayi Machinery Technology Co., Ltd. is located in the beautiful spring city of Jinan.The company has long been engaged in the research and development of food production line machinery and production processes, adopting standardized production technologies, upholding the concept of automated control operations, and focusing on the development of stable and reliable production equipment.Our company’s design team possesses extensive experience in design, R&D, commissioning, and production, and is supported by dedicated on-site engineering personnel who handle production and commissioning tasks, enabling us to provide you with standardized design, production, and commissioning processes.

What conditions should be considered during implementation or selection?

First, it is essential to clarify the product type, raw material state, formulation direction, and expected finished product requirements.For projects involving extrusion, forming, drying, frying, conveying, seasoning, or packaging, the processing capacity and cycle time of each stage must be matched to avoid discrepancies between individual equipment capacity and the overall line requirements.

Secondly, the installation plan should be evaluated in conjunction with the workshop's spatial layout and utility conditions, including power supply, water supply, steam, or gas.Equipment configuration should also take into account long-term operational factors such as cleaning, maintenance, safety protection, spare parts supply, and operator training.Any process or equipment capabilities mentioned in this document are for reference only in the context of solution discussions and preliminary assessments.Specific model numbers, power ratings, production capacities, temperatures, and times shall be subject to the formal technical proposal and the results of trial runs or on-site verification.

Frequently Asked Questions

Can the equipment be determined directly based on the standard configuration?

Not recommended.Different raw materials, product structures, target production capacities, and downstream processes can affect the equipment configuration.It is more prudent to confirm the product and process conditions before proceeding with the configuration assessment.

How to obtain more targeted advice?

It is recommended to prepare product images or sample information, raw material and formulation guidelines, target production capacity, existing workshop conditions, and planned downstream equipment configurations.Dayi Machinery can further discuss the applicable process routes and equipment configuration options based on this.

This article is compiled based on the "Indirect Extrusion Technology" materials provided by Dayi Machinery, with the aim of helping readers understand the relevant topics.For technical requirements related to specific projects, please refer to the actual product documentation and engineering confirmation results.