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An Investigation into the Functionality and Efficiency of an Electric Pressure Cooker Bought in Kenya Intended for the Domestic Market: 'Sayona PPS 6 Litre' (Working paper)

Published Date 


Monk, N. (2020)

Dr Nigel Monk

About the publication

The ‘Sayona PPS 6 litre’ EPC was bought in Kenya, is also available in Nigeria, Pakistan and possibly elsewhere, but is not available in the UK via Amazon or elsewhere. It is a conventional EPC having a mechanical, clockwork timer switch plus thermostatic control switches and a range of safety features similar to those found in other cookers (see: Table 1).

In the context of the MECS programme, the Sayona EPC is known to be available in-country in the global south and offers a simple control interface which is not dominated by pre-programmed menus oriented towards western foods. It is similar in the latter respect to the Tower TI6004.

This report examines and describes the cooker in detail for functionality, safety assurance, operational and thermodynamic behaviour, temperatures achieved and energy consumption. The tests comprise water boiling tests (WBT) of minimum, maximum and interleaving cooking loads. Water is used as a highly accurate and repeatable cooking load and, simply, many foods contain a high proportion of water

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