What happens to coffee when it cools down?

#158 Rebroadcast Gemstones come in all sorts of colors, but how do they get them? Are different stones super different at the molecular level? How do these different colors happen naturally? And how can those colors be replicated in lab-made gemstones? Let's get into it. Referenc ...  Show more

Why does a pencil work so perfectly? Why does graphite leave marks on paper instead of just crumbling apart? And what do pancakes, honeycombs, geckos, and intermolecular forces have to do with any of it? This week we follow a simple pencil all the way down to carbon atoms, graphe ...  Show more

Once a cup of coffee goes cold, it'll never taste the same -- but why? Learn the science behind the weird flavors of microwaved coffee in this classic episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/food-science/why-microwaved-coffee-tastes-bad.htm ...  Show more

The world loves coffee. We drink two billion cups each day! But it’s very vulnerable to climate change, and millions of coffee farmers are struggling. Rising temperatures, unpredictable rainfall and diseases are threatening our favourite caffeinated drink and the livelihoods o ...

What flavours do you want from your coffee? Every coffee bean begins its life green. And if you brewed it up without first roasting it, you’d get a yellow-green cup of grass-flavoured water. But, as soon you apply heat to a bean, the flavour can morph to from something quite vege ...  Show more

The Science of Coffee is a journey into coffee's hidden microscopic secrets to help you make even better coffee at home. Across six episodes, documentary maker and coffee professional James Harper takes you deep into the world of water for coffee, coffee extraction, plant genetic ...  Show more