I. How Long to Steam Buns
1. For standard-sized buns (approximately 3-4 cm in diameter), steam for about 20 minutes after the water in the pot comes to a boil.Additionally, steaming time varies by size. Larger buns require longer steaming. For standard-sized buns (approximately 3-4 cm in diameter), about 10 minutes after the water boils is sufficient. You must judge readiness yourself: lift a bun, flip it over, and press the base (where it touched the steamer rack). If it springs back, it's done. If it leaves an indentation, it needs more time.
2. Shrinking tops usually stem from three causes: First, insufficient dough fermentation. Second, using too little alkali. The third and most common issue is an overly tight lid, trapping steam and causing problems when the heat is high! Simply avoid sealing the lid too tightly when the heat is intense. Leave a small gap for steam to escape, preventing the buns from shrinking into dense, dense dough.
3. When preparing the steamed buns, ensure the dough is fully rested. Typically, rest for 10-15 minutes before placing in the steamer.
4. Small transparent patches on the top surface occur when condensation from the lid drips onto the buns. Immediately remove the lid after steaming to prevent this.
5. If the steamed buns have rested on the work surface for 10-15 minutes, place them in the steamer over boiling water.
6. If the buns have rested for a shorter time, place them in the steamer before the water boils (the boiling process also aids in resting the dough).
II. Tips for Steaming Mantou
(1) If the dough appears partially risen, create a small well in the center and pour in two small cups of white wine. After 10 minutes, the dough will fully rise.
(2) If yeast is unavailable for leavening, substitute honey at a ratio of 15-20 grams per 500 grams of flour. After kneading the dough until soft, cover with a damp cloth for 4-6 hours to activate fermentation. Steamed buns made with honey-leavened dough turn out fluffy, fragrant, and pleasantly sweet.
(3) During winter when indoor temperatures are low, dough takes longer to rise. Adding a small amount of white sugar during fermentation can shorten the rising time.
(4) People often add a suitable amount of alkali to fermented dough to remove sourness. To check if the alkali amount is appropriate, cut a piece of dough with a knife. If it has evenly distributed holes the size of sesame seeds on the surface, the alkali amount is just right.
(5) If steamed buns turn yellow due to excessive alkali and develop an unpleasant alkaline taste, add 100-160 grams of vinegar to the steaming water. Place the steamed buns back in the pot and steam for an additional 10-15 minutes. This will restore their whiteness and eliminate the alkaline flavor.
(6) Adding a small amount of saltwater to the flour during steaming promotes fermentation, resulting in white and fluffy steamed buns.
III. How to Determine if Steamed Buns Are Done
The following methods can be used to check if steamed buns are cooked:
(1) Gently tap the bun with your hand; if it feels springy, it is done;
(2) Peel back a piece of the crust; if it lifts easily, it's done. Otherwise, it's undercooked;
(3) Gently press the bun with your finger. If the indentation quickly springs back, it's cooked. If it stays indented, it's not fully steamed.
IV. Method for Steaming Buns
Preparation:
1.Combine fermented dough (starter dough) with flour and water to form a dough. Place in a bowl or proofing box to ferment (fermentation time depends on room temperature and amount of starter dough).
2. Take the fermented dough and add baking soda (homemade steamed buns typically omit baking soda, as it imparts a distinct flavor that can overpower the bun's natural aroma) and white sugar(sugar can be adjusted to taste; northerners typically omit it, while southerners often add sugar). Knead thoroughly until smooth, roll into a long log, pinch off portions, arrange on a steamer rack with the pinched ends facing up, sprinkle with red and green shredded candied fruit, steam over high heat for 20 minutes, then remove.Northern-style steamed buns typically involve shaping the dough into flat, round buns with a flat bottom and rounded top after dividing the long dough strip into portions. These are then placed on the steamer rack for cooking.
(Note: The second point states that homemade steamed buns typically omit alkali, which I disagree with. Fermented dough tends to be acidic, and alkali neutralizes this. Additionally, alkali decomposes into carbon dioxide at high temperatures, making the buns fluffier. Here, "alkali" refers to food-grade alkali, distinct from industrial soda ash.)