打算找低筋面粉才GOOGLE出来的这个帖子,发现大家都没有定论。最后还是在WIKIPEDIA找到了答案。; J* n+ d9 e7 L Z
+ ?4 R+ q: C$ f" jIn general, as the extraction rate of the flour increases, so do both the protein and the ash content. However, as the extraction rate approaches 100% (whole meal), the protein content drops slightly, while the ash content continues to rise.' H) {5 ?3 u8 @/ _- o, z( ~
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The following table shows some typical examples of how protein and ash content relate to each other in wheat flour:5 x& [+ @3 ?1 j9 T: i4 Z
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Ash Protein Wheat flour type
4 t" Z b# i5 \+ t1 m% _; T, u5 R# J US German French 7 l9 }. F* M7 |2 g) r1 ~. m; \. Z
~0.4% ~9% pastry flour 405 40 . X- l* ]& w! U9 \
~0.55% ~11% all-purpose flour 550 55 3 p, S' ^. o1 M: A' B
~0.8% ~14% high gluten flour 812 80 / Y2 J9 K' V0 _0 A/ ]
~1% ~15% first clear flour 1050 110 & @9 P/ G0 Y( @1 @; p/ Y ]
>1.5% ~13% white whole wheat 1600 150 4 q: t) f9 P6 C' O$ {" P
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This table is only a rough guideline for converting bread recipes. Since flour types are not standardized in many countries, the numbers may differ between manufacturers. |