Yoghurt Cake: Why 160°C Is Better Than 180°C

Your cake rises beautifully and you are already looking forward to it – but cutting into it brings disappointment: the top is dark and cracked, while the middle is chewy or even still wet with batter. Often, this is not down to the recipe, the baking powder or your skills, but simply to the wrong oven temperature. For a classic yoghurt cake, the standard setting of 180°C is actually far too high.

Why 180°C rarely suits yoghurt cake

Out of habit, many home bakers set the oven to 180°C. It appears in countless recipes and is regarded as an all-purpose temperature for cakes. While it can work for a relatively airy sponge mixture, it causes problems for the typical yoghurt cake, which has a fairly dense and moist batter.

A yoghurt cake contains plenty of moisture: yoghurt, eggs, oil, sugar and raising agents. This combination needs time to set properly. When the oven is too hot, the following happens:

• The surface sets very quickly and browns heavily.
• Heat struggles to reach the centre.
• The gases produced by the baking powder expand too rapidly.
• The cake rises sharply, then partly sinks again later.

The result will probably sound familiar: a domed “volcano” with cracks, sometimes even with a slight dip in the middle. Batter clings to the knife when you test it, although the edges already appear baked. The cake feels heavy, its crumb is uneven, and it may be dry in places yet sticky in others.

Too much heat makes the outside of a yoghurt cake firm long before the centre has set and baked through while remaining moist.

What really happens in the oven: heat, baking powder and browning

Inside the batter, the eggs, yoghurt, fat and baking powder all work together. The gas bubbles created during baking need to expand gradually so they can form a stable structure. At 180°C, this happens too quickly.

The baking powder reacts and the batter puffs up fast. However, the structure is still soft and cannot support the air pockets that have formed. Some bubbles burst, causing the cake to sink slightly again. At the same time, much more is happening at the surface than in the middle.

There is also the browning process known to experts as the Maillard reaction. During it, sugars and proteins react with one another, making the crust brown, aromatic and firmer. That is desirable in principle, just not too soon. If the surface hardens and is almost “sealed” early on, steam becomes trapped inside and pushes upwards. This creates the familiar cracks and splits.

The ideal yoghurt cake temperature: 160°C as the new standard

For an evenly moist yoghurt cake, baking professionals recommend lowering the temperature noticeably. For a standard domestic oven, the best guide is:

For a light yoghurt cake with a fully baked centre, 160°C fan is the benchmark.

At 160°C fan (roughly setting 5 on a traditional control dial), you get a good balance: hot enough for the baking powder to work, but gentle enough for the heat to reach the centre before the crust becomes too firm.

Importantly, the lower temperature extends the baking time. If you would usually bake at 180°C, allow around 10 to 15 extra minutes at 160°C. The reward is an even cake without a hump, with a delicate crumb and a golden-yellow surface.

What if your oven has no fan setting?

Not every oven has a fan function. Conventional top and bottom heat also works very well if you take a careful approach:

• Preheat the oven to around 170°C conventional top and bottom heat.
• Bake the cake slightly lower in the oven so the top heat is not too harsh.
• Expect a somewhat longer baking time here too.

The principle remains unchanged: moderate, steady heat is better than an oven that is too hot and uneven.

Step by step: how to bake yoghurt cake at 160°C

A straightforward method helps you make the most of this gentler temperature. This approach has proved reliable:

1. Preheat the oven in good time: Heat it to 160°C fan for at least 15 minutes before putting the cake in.
2. Use the right oven position: Place the tin on a shelf in the lower third of the oven. This reduces the direct heat reaching the top of the cake.
3. Leave the door alone: Do not open the oven door during the first 35 minutes, so the batter can rise undisturbed.
4. Allow for the full baking time: At 160°C, a yoghurt cake generally needs around 45 to 50 minutes.
5. Do the skewer test: Towards the end, test the centre with a wooden skewer or knife – it should come out without traces of batter.

If the surface is already becoming very dark while the centre is still not ready, the cake is probably sitting too high in the oven or your oven runs hotter than its display suggests. In that case, move the tin down by one shelf and stick consistently to 160°C rather than repeatedly turning the temperature up and down.

After baking: avoid a temperature shock

Another common mistake occurs when taking the cake out. Many people move a cake they believe is finished straight from the hot oven into a cool kitchen. This sudden drop in temperature can make the yoghurt cake sink a little in the middle again.

A kind of “gentle landing” works better:

• Switch off the oven once the skewer test is successful.
• Leave the cake in the warm oven for another 10 minutes, with the door slightly ajar.
• Only then remove the tin completely and leave it to cool on a wire rack.

This gradual cooling helps the cake hold its shape, stay light and avoid looking sunken when sliced.

Common problems – and what they reveal about the temperature

Why yoghurt cake is so sensitive to heat

Compared with a sponge cake or a simple butter cake, yoghurt cake contains a considerable amount of liquid and fat. The yoghurt provides moisture and a finely tangy flavour, but it also slows down baking in the centre.

At the same time, several elements contribute to volume: baking powder, possibly bicarbonate of soda, air beaten into the batter and rising steam. When these effects meet in an oven that is too hot, the top of the batter is effectively “nailed shut” while there is still movement inside. This explains why this particular cake benefits so greatly from a gentler temperature.

Practical tips for even better results

Temperature is only one part of the equation. To improve your yoghurt cake reliably, keep a few further points in mind:

• Bring ingredients to room temperature: Cold yoghurt straight from the fridge unnecessarily lengthens the baking time in the centre.
• Do not overmix the batter: Mixing for too long makes the batter more likely to turn chewy and lets the air escape.
• Choose the right tin: Very tall, narrow tins require more baking time than shallower ones. Do not overfill tall tins.
• Get to know your oven: Many domestic ovens differ from their displayed temperature by 10 to 20°C. A simple oven thermometer provides clarity.

Once you have the baking temperature under control, you can easily vary the yoghurt cake with fruit, nuts or chocolate pieces. A gentle approach is particularly worthwhile with juicy fruit such as peaches or berries, as the extra moisture in the batter intensifies the effect in the middle of the cake.

For people who tend to bake as an aside, moving from 180°C to 160°C may initially sound like a minor adjustment. In practice, though, this difference can take a yoghurt cake from “all right” to “I want to bake this cake again”. Anyone who tries a direct comparison will quickly notice just how closely temperature, baking time and structure are connected.