Why Is My Cake Sinking In The Middle?

Find out why your cake is sinking in the middle and how to prevent it from happening in the future.

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There are many possible reasons why a cake may sink in the middle, including:
-Incorrect oven temperature
-Opening the door during baking
-Losing too much heat when adding ingredients to the batter
-Not enough leavening agents
-Overmixing the batter

The Science of Baking

When you’re baking a cake, there are a lot of factors at play. You have to make sure the ingredients are all compatible, the oven is the right temperature, and you’re following the recipe to a T. But even if you do all of that, sometimes your cake still sinks in the middle. Why does this happen?

The importance of eggs

Eggs are one of the key ingredients in baking, and their role is crucial to the success of many recipes. Though they may seem simple, eggs are actually a complex and fascinating food, full of nutrients that help us live healthily. In baking, eggs provide structure, leavening, moisture, and color. Let’s take a closer look at each of these functions.

Eggs act as a leavening agent when beaten into a batter or foam. The proteins in the egg whites trap air and expand when heated, causing the batter to rise and resulting in a fluffy cake or light and airy meringue.

Eggs also contribute moisture to a recipe. This is especially important in cakes, where a lack of moisture can result in a dry, crumbly texture. The fat in the egg yolks helps to create a tender crumb by coating the flour particles and prevent them from absorbing too much liquid from the batter.

Finally, eggs also play a role in giving baked goods their color. The egg yolks contain carotenoids, pigment molecules that reflect light to produce the yellow color we see in many cakes and pastries.

The role of flour

One of the key ingredients in baking is flour. Flour is a powder made by grinding cereal grains, and it is the main ingredient in bread, cakes, pastries, and pizza dough. There are different types of flour, and each type has unique characteristics that make it better suited for certain foods. For example, bread flour is higher in gluten than all-purpose flour, which makes it better for making chewy breads.

The protein content of flour also affects how a baked good will turn out. When flour is mixed with water, the proteins (such as gluten) in the flour form strands that give structure to the dough or batter. The more protein a flour has, the more gluten it will form, and the tougher the end product will be. That’s why bread flour is not ideal for making tender cakes or pastries.

The type of wheat used to make the flour also affects the baker’s final product. Flours made from hard wheat have more protein than those made from soft wheat and will produce a denser baked good. Cake flour, which is made from soft wheat, has less protein than other types of flour and will result in a lighter cake with a finer crumb (the individual particles that make up the cake).

In general, cake recipes call for all-purpose or cake flour, while bread recipes call for bread or all-purpose flour. If you use a different type of flour than what is called for in a recipe, you may end up with an unexpected result. For instance, if you use bread flour in a cake recipe, your cake may be tough and chewy; if you use cake flour in a bread recipe, your bread may be dense and crumbly.

The role of baking powder

Baking powder is a key ingredient in many cakes, biscuits and other baked goods. It’s a leavening agent, which means it helps the batter to rise. When baking powder is used in baking, it reacts with other ingredients to produce carbon dioxide gas. This makes the batter light and fluffy and gives the finished product a more cake-like texture.

Baking powder is made up of two main ingredients: an acid and an alkali. When these two ingredients are combined, they react with each other to produce carbon dioxide gas. This reaction starts as soon as the two ingredients are combined, so it’s important to add the baking powder to the batter just before you’re ready to bake.

There are two types of baking powder: single-acting and double-acting. Single-acting baking powders react with liquid ingredients, so they need to be added to the batter just before you bake. Double-acting baking powders react with both liquid and dry ingredients, so they can be added to the batter earlier in the process.

The role of baking soda
Baking soda is another leavening agent that’s often used in baking. Like baking powder, it helps the batter to rise and produces a light, cake-like texture. Baking soda is made up of one main ingredient: sodium bicarbonate. This ingredient reacts with other ingredients in the batter to produce carbon dioxide gas.

The reaction between baking soda and other ingredients starts as soon as the two are combined. For this reason, it’s important to add baking soda to the batter just before you’re ready to bake. Baking soda doesn’t have a long shelf life once it’s been mixed with other ingredients, so it’s best to use it right away rather than storing it for later use.

Tips for Perfect Cake Baking

One of the most common problems when baking a cake is that it sinks in the middle. There are a few reasons why this can happen. It could be that you didn’t mix the batter evenly, the oven temperature was too high, or you didn’t bake it long enough. Let’s look at each of these problems and see how you can avoid them.

Preheat your oven

This is the most important step in the whole process! If your oven isn’t preheated, your cake will sink in the middle. Preheat it to the temperature specified in your recipe, and don’t open the door while your cake is baking or it will sink!

Cake tins

When it comes to cake tins, the most important thing is that they are the right size for the recipe you are using. If your cake tin is too small, your cake will be very flat. If your cake tin is too big, your cake will be very thin.

You can use any kind of cake tin for most cakes, but there are some tins that are better suited to certain types of cakes. For example, a sponge cake or a genoise should be baked in a shallower tin so that it cooks evenly all the way through. A fruit cake or a madeira should be baked in a deeper tin so that it doesn’t dry out.

Cake tins come in all sorts of shapes and sizes, but the most common ones are round, square and rectangular. You can also get heart-shaped, star-shaped and novelty shaped tins. It’s up to you what shape you use, but bear in mind that the cooking time may vary slightly depending on the shape of the tin.

If you’re making a sponge cake or genoise, make sure you line the tin with baking paper so that the cake doesn’t stick to the sides and break when you turn it out. For fruit cakes and madeira cakes, you don’t need to line the tin because these types of cakes benefit from being cooked slowly and gently so that they don’t dry out.

Be precise with measurements

When it comes to baking, precise measurements are essential in order to produce a perfect cake. This means measuring ingredients by weight rather than volume. Even a small difference in the amount of flour, for example, can result in a dry and crumbly cake. So, invest in a good kitchen scale and make sure to follow recipes to the letter.

Do not overmix

Overmixing can cause your cake to become tough and adapt a rubbery texture. When you are creaming the butter and sugar together, only mix until the ingredients are JUST combined. It’s fine if there is still some flour mixture left at this stage too. In fact, it’s better!

Do not open the oven door during baking

One of the most common mistakes made when baking a cake is opening the oven door while the cake is baking. This lets out heat and can cause the cake to sink in the middle. If you absolutely must open the door, do so quickly and close it just as quickly.


There are many reasons why a cake might sink in the middle, but the most common cause is too much leavening agent. When you add too much baking powder or baking soda to a cake batter, it causes the cake to rise too quickly and then collapse. Other causes include using a too-small pan, overcooking or not allowing the cake to cool properly before slicing.

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