Practical Action Publishing

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  Fruit Juice Processing

  This brief looks at juice extraction, preparation, pasteurisation, bottling, quality control, and equipment suppliers.

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  Sugar production from Sugar Cane

  This brief describes the process of sugar production, explaining yields, crushing, juice treatment, juice boiling and cleanliness.

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  Drying of Foods

  The drying of food results in longer preservation and ease of transport (lighter). This technical brief describes some of the requirements for food drying to retain maximum nutrients and aesthetics, and summarizes information on the various drying equipment.

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  Tomato Processing

  Tomato processing can be an instrumental skill for farmers who want to convert the tomatoes into various other products besides using it as vegetables. This technical brief contains the varieties of ways a farmer can process the tomato into many other products. Tomatoes are known to be the most impo...

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  Soap Making

  This Technical Brief describes the procedures needed to make a variety of simple soaps and includes a number of recipes for different types of soap.

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  What is Appropriate Technology?

  Technology: choice or compromise?

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  Oil Extraction

  Small scale oil extraction from nuts, seeds and fruits, can be used for eating, cosmetics and detergents. It can be a good source of income, once the equipment is invested in up front.

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  Making a Manual Fuel Briquette Press

  This brief describes the process of making and using a simple low-pressure manual press for fuel briquette production. This press can also be used for other purposes, such as vegetable oil extraction. In this brief however we will concentrate on fuel briquette making only.

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  Educational Wooden Toys

  Drawing and build instructions of an educational wooden toy developed by Tim Godwin, the consultant for the Sri Lankan toy project in establishing the local production of educational pre-school toys. The Threaded Shapes comprise of a circle, triangle and square that can be pushed through the appropr...

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  Compressed Stabilised Earth Block (CSEB) Construction Manual

  This technical brief explains about the Compressed Stabilised Earth Blocks structure.