One hundred kilograms of dry flour can produce about 140 kilograms of steamed buns. The following is detailed information from the ingredients list and production steps:

Ingredients list:

* 100 pounds of dry flour

* 40 pounds of water< /p>

* Appropriate amount of yeast

Preparation steps:

1. Mix dry flour and yeast, slowly add water, and knead into a smooth dough.

2. Place the dough in a warm place to ferment until doubled in size.

3. Divide the fermented dough into small pieces and shape them into steamed bun shapes.

4. Place the finished steamed buns in a steamer and ferment again.

5. When you see the steamed buns fermenting again until they become lighter, start steaming.

6. Steam over high heat for 15-20 minutes.

As can be seen from the above steps, the main cost of making steamed buns is flour and water, as well as some other small but necessary materials, such as yeast. When calculating profits, the cost of these materials, as well as possible labor and equipment depreciation, need to be taken into account.

In terms of ingredient costs, the cost of 100 kilograms of dry flour is about 200 yuan, the cost of 40 kilograms of water is negligible, and the cost of yeast is about 10 yuan. The total cost is 210 yuan.

In terms of selling price, assuming that each steamed bun sells for 0.5 yuan, the total selling price of 140 kilograms of steamed buns is 70 yuan.

Therefore, the profit earned by steaming one hundred pounds of dry flour steamed buns is about 50 yuan. It should be noted that this does not include miscellaneous expenses such as labor costs, water and electricity bills, etc., so the actual profit may be lower.