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Summary

Bread-bakeing

A bread-baker in a relative simple construction, for family use was the idea. The literature I found, is the following: A bread-baker/box cooker with pyramid reflectors was reported in http://www.backwoodshome.com/articles/radabaugh30.html, also published in solarcooking-wikipedia under http://solarcooking.wikia.com/wiki/Box_cookers#Box_Cookers_with_Reflectors. The theoretical increasing of the bakeing power leaded me to a conical construction, I found under http://solarcooking.wikia.com/wiki/Concentrators_from_above, in form of an old type called “VITA conical cooker”. The big measures caused, that I took the three-part cone and the baking-box as dismountable parts.

The home-made baker has a conical reflector, with diameters 1000/300 mm, length 1300 mm, made from drawing paper (for drawing the curves of the cone-layouts), more layers of thick cardboard paper stiffing, and inside aluminium folie. Angle of cone-inclination 15° (the whole cone 30°). The cone is built from 3 parts, greatest measure: Ø 1000x520 mm. The cones can be fit in use one in the other with 100 mm overlaping on the ends. After use they can be put also one in the other, but from the opposit direction, so it has only the one ouside measure (Ø 1000x520 mm). So the 3 cone-parts can be stored in one on a stick hanging from the ceiling, or from the wall. Under the reflector is a baker-box, outside/inside measures: cube 420/320 mm, one (upper) side can be opened, or fixed if closed. IMG 0364 2 The box is made with light wooden frame, cardboard envelope, and paper insulation. It has a 100 mm long fitting cone over the glasing. The reflector and baker-box is separeted with a double glasing. Baking pot is a 300 mm wide pan with cover and rough (mate) black painting (car spray lack). The inside of the baker-box is covered on sides with aluminium folie, on the bottom painted mate black. The pot is hanging in a swing, for keeping in water level. The bread-baker must incline and stay in cca 30° from the perpendicular to the Sun, so it has a console and rope construction. Two side bars, and a support string between was less movable. Then I fixed on the sides the cone to the box with strings, and over the cone with a longitudinally bar fixed to the box from what the cone was hanged down also with strings. Now the end of the bar is used for fixing two about 90° opened strings, wich are fastened to pegs. With the positioning of the pegs, box and lifting the bar you can direct the bread-baker to the Sun. It is quite difficult, and needs 2 persons.

We baked a 1 kg bread in 3 hours, and positioned the baker about twice an hour (cca 15/2 degree sunray turning). We are in Hungary, and on a latitude of about 45-47°, with summer environment temperature 26 C, clear sky. The box temperature was about 120 C. We baked a 1 kg bread in 3 hours, and positioned the baker about twice an hour (cca 15/2 degree sunray turning). The dough doesn’t made vapour, so the glass remained clear. As an amateur cooker I used the following recipe: 67 decagramme meal (full wheat content) 2,5 deciliter water 1,5 deciliter curdled milk (in any commerce form) 10 decagramme cutted up fruits (wet) 1 table-spoon edible oil ½ teespoon salt 2 decagramme (not instant) leaven The swelling of the dough lasted 1,5-2 hours. After bakeing we could take the pot with kettle holder, and the cover is to be taken off for better cooling and vapouring. With closed cover the water condensates. Better is to turn out the bread from the pot. The same bakeing in the electric baker (with swelling) lasts 3 hours 48 minutes. I hope the home-making of bread-baker kindles somebodys interest, and will be useful in the middle latitude countrys too.

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    Summary Bread-bakeing A bread-baker in a relative simple construction, for family use was the...

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Date/TimeThumbnailDimensionsUserComment
current10:30, August 13, 2007Thumbnail for version as of 10:30, August 13, 2007600 × 800 (129 KB)Wsiegmund (Talk | contribs)Rotated upright
08:24, August 13, 2007No thumbnail (133 KB)Andrew Q (Talk | contribs)Bread-bakeing A bread-baker in a relative simple construction, for family use was the idea. The literature I found, is the following: A bread-baker/box cooker with pyramid reflectors was reported in http://www.backwoodshome.com/articles/radabaugh30.html,
08:19, August 13, 2007No thumbnail (133 KB)Andrew Q (Talk | contribs)Bread-bakeing A bread-baker in a relative simple construction, for family use was the idea. The literature I found, is the following: A bread-baker/box cooker with pyramid reflectors was reported in http://www.backwoodshome.com/articles/radabaugh30.html,

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