Gels

Gels are fun. They are also kind of improbable – turning a liquid into a solid. Take gelatin for example. Add just 1% of gelatin (by weight) and you can turn water into something solid. A solid consisting of 99% water? Where did the water go? What did such a tiny amount of gelatin do

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Food for thought

I thought I would perhaps expand on my reasons for writing the previous ‘food is history’ post (and others like it). There are very few things humans can absolutely not do without, and one is food. So food, cooking, eating and producing are everywhere. But this does not make their role in our lives stand

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Food is History

Our hominid ancestors branched off from the chimpanzees around 6-8 million years ago. For 99.9% of the ensuing time they lived by hunting and gathering. Our own species, homo sapiens, emerged from the hominids about 100,000 years ago, and for the next 90,000 years they too were hunter-gatherers. The Neolithic revolution, defined by the invention

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Baking or roasting?

Were the potatoes in this image baked or roasted? We ‘bake’ a cake, but ‘roast’ a chicken. I wonder why that is, given that both are put in an oven at around the same temperature. And what do those bake/roast settings on the oven knob mean anyway? Not much really. Strictly speaking the oven doesn’t

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