烤箱做蛋糕不起发什么原因？

烤箱做蛋糕不起发的原因有很多，首先要看到的是可能是发酵粉或泡打粉用的太少或者过期了，导致蛋糕没有足够的发酵。此外，还有可能是面糊没有充分搅拌均匀，造成的浓稠粘稠，影响了蛋糕的起泡效果。

其次，如果使用的烤箱温度不对，也会影响蛋糕的发酵。温度过高会使蛋糕表面过早固化，而内部却还没有完全发酵，而温度过低会使蛋糕的气泡无法在指定的时间内充分膨胀，最终导致蛋糕无法起泡。

再次，有可能是在蛋糕制作过程中人为的错误，例如浆料渗透太多导致面糊失去了空气，或者是在制作过程中把蛋白打发的时间过长，导致蛋白泡沫过于细小，又或者是在蛋黄和蛋白拌合过程中没有轻轻慢慢地搅拌，而使蛋白泡沫在拌合的过程中全都被毁掉了。

最后，如果蛋糕模具太小或者模具数量不足也会影响蛋糕的起泡效果，因为蛋糕在烘烤过程中需要空气来促进膨胀，如果模具太小或者模具数量不足，蛋糕就无法得到足够的空间来膨胀。

总之，导致烤箱做蛋糕不起发的原因有很多，需要我们仔细检查和分析，找到问题所在，才能制作出口感松软、味道鲜美的蛋糕。

【参考译文】

The reasons why a cake may not rise when made in an oven are varied. Firstly， insufficient amounts of baking powder or baking soda may have been used， which could result in a lack of necessary leavening. Furthermore， if the batter is not sufficiently mixed， it may become dense and sticky， which also adversely affects its rising capabilities.

Secondly， if the oven temperature is not accurate， it can also affect the cake's rising ability. If the temperature is set too high， this may cause the outside of the cake to become too dry and hard before the inside has finished rising. On the other hand， if the temperature is set too low， it may take too long for the cake to rise， and it may not rise enough within the allotted time.

Thirdly， sometimes human error can occur during the cake-making process. Examples of this include the batter becoming too moist， saturating it with too much liquid， or whipping the egg whites for too long， resulting in overly tiny air bubbles. Additionally， not mixing the egg whites and yolks properly can also result in problems with the cake's rising capabilities.

Finally， if the cake pan is too small or there are not enough pans， this can affect the cake's ability to rise. During the baking process， the cake requires space to expand， and if there is not enough room， the cake will struggle to rise efficiently.

In conclusion， there are many variables that can lead to a cake's inability to rise properly when baked in an oven. It is important to carefully analyze and address any potential issues in order to achieve a light， fluffy， and delicious cake.