Practical Answers

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  Fruit Preserves - Jams, Jellies and Marmalades

  An introduction to small-scale jams, jellies and marmalades making, Known collectively as preserves.

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  Guideline for Building Power Thresher

  Step by step pictorial description of how to build a power thresher cost effectively.

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  Making Stabilised Soil Blocks

  Deals with the two main problems that can arise with earth buildings: stabilisation and compaction.

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  Pepper Processing

  Pepper processing looks at the main post harvest activities. These activities include sorting, threshing and drying.

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  Clove Processing

  Cloves are the unopened flower buds of the evergreen tree and are used to flavour foods and drinks. They are also used to produce essential oil used in dentistry and as a cleaning agent in microscopy. The steps in obtaining and processing it are shown here.

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  Promoting Local Innovation in Sudan

  The aims of this publication are to focus on the collection and classification of Sudanese local innovations using a "bottom-up" approach, to take into account the historical depth and the potential use that may highlight the continuity and changes in local innovations as indicators of society trans...

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  A Simple Retort

  How to make and use a simple retort for separating gold-mercury amalgam.

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  Agro-pesticide use in Sri Lanka

  This study examines the present situation of pesticide use and the changes and trends over the past ten years with the objective of highlighting the issues that need to be addressed by policies.

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  Chimney Stoves and Smoke Hoods

  Nearly half the world cooks on three-stone fires or basic stoves causing indoor air pollution. This brief looks at ways to reduce the pollution by using chimney stoves and smoke hoods to let the smokey air escape outdoors.

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  Stoves for Institutional Kitchens

  Institutional stoves are used where large amounts of food need to be cooked. Typical examples are schools, hospitals, prisons and refugee camps.