Based on the provided snippet, the preparation of soyabean powder involves blending dried soyabeans. While the provided text is incomplete, it hints at the final step. Here's a more complete process based on common soyabean powder preparation methods:
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Soaking the Soyabeans (Optional): Soaking can help reduce beany flavor. If desired, soak soyabeans in water for several hours or overnight.
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Cooking the Soyabeans: Boil or steam the soyabeans until they are cooked thoroughly. This step is crucial for digestibility and to remove antinutritional factors. You can tell they are done when they are easily mashed.
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Drying the Soyabeans: The soyabeans need to be completely dry before grinding. You can dry them in a dehydrator, a low oven (watch carefully to prevent burning), or in the sun.
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Blending/Grinding: Once dried, place the soyabeans in a high-powered blender or grinder (as mentioned in the provided text). Blend until a fine powder is achieved. The snippet suggests using the same blender that is typically used. Blend in small batches for a more consistent powder.
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Storage: Store the soyabean powder in an airtight container in a cool, dark, and dry place.
