If most of what we taste is determined by smell, why do some things that smell good (cologne, perfume, soap, etc.) taste bad? (re-post/ rephrased from /r/explainlikeimfive)
  Hey there, little buddy! Let me tell you a cool thing about our senses.

You know how sometimes things look yummy, but they don't taste as good as they smell? Like, you might see a delicious-looking cake, but when you take a bite, it doesn't taste as good as it looked. That's because our sense of smell is super powerful, and it can trick our taste buds into thinking something tastes better than it really does!

Well, the opposite is also true. Sometimes things might smell really good, but they don't taste as good as they smell. This can happen for a few reasons:

1. The smell and taste come from different parts of the thing: Sometimes, the smell and taste come from different parts of the thing you're eating or smelling. For example, when you smell a nice cologne, the smell might come from the chemicals in the bottle, but the taste comes from the stuff on your skin. So, even if the smell is great, the taste might not be as good.
2. The taste buds on your tongue are different: Your tongue has different kinds of taste buds that can detect different flavors. But, sometimes the taste buds on your tongue can't detect the flavors that your nose can smell. So, even if
The reason why some things that smell good taste bad is because the flavor of the item may be overpowered by the strong smell. Additionally, the taste buds may be unable to differentiate the flavor of the item from the strong smell, resulting in a bad taste.