- Clear Blue sky – Correct position of the sun to get optimal irradiation
- Proper structure and position of the Sunicook
- Appropriate choice of dish – Dark coloured or black pot
No. The oven can easily be touched and turned without risk of burns. Therefore it is also safe in the presence of children playing in the garden.
The ambient temperature is not the main condition. What you really need is a clear blue sky for optimal solar radiation.
The Sunicook should aim at an optimum angle to the sun. Therefore use the sun indicator. The central screw creates a line shaped shadow. Adjust the parabole until the shadow forms a small ball within the white ring-shaped disk.
Follow the sun for the optimal radiation concentrated on the pot. Rotating with the sun every half an hour is enough.
In western and southern Europe the Sunicook can be used from March until October. During the remaining months the sun is not strong enough in this part of the world. Depending on the season you can cook between 09.00 and 19.00 hours.
A summer breeze cannot harm the process, but preferably put your Sunicook in a sheltered place in order to prevent the wind cooling off your pot.
The Sunicook is ideal for making soups, casseroles, stews, tagines, spaghetti, sauces, tea and coffee. If the sun is high in the sky, you can fry meat or fish. Making a cake or bread can succeed but requires some solar cooking experience. Cover the top with some aluminium foil to avoid burning. In African and Asian countries the Sunicook can be very useful to make safe drinking water or sterilize e.g. medical equipment.
This depends on the conditions – being the position of the sun, the wind, the brightness of the sky and the season. Usually you can estimate 15 to 20 minutes to boil one litre of water. The Sunicook can easily boil 5 litres of water.
Black or dark-coloured pots are ideal to absorb and retain the heat. The lid can be made of glass but do not forget to cover a plastic of wooden handle with aluminium foil to prevent it from melting.
Shiny pans are not suitable because they reflect the light and therefore will not retain the heat.
If the handle is made of wood or plastic cover them with some foil. This will avoid melting or burning by the heat. The pan’s handle doesn’t need to be covered because it is not in the cooking zone and therefore is not exposed to high temperatures.
Place your Sunicook out of the sun before you clean it. Clean it with a damp soft cloth with a drop of dishwashing cleaner.
Check whether there is sufficient solar radiation and the sky is bright blue. Again check all the necessary conditions as previously mentioned. Is your solarcooker properly positioned towards the sun?