The order is booked. The deposit has cleared. Then the message arrives, and it is one line long: everything vegan, please — including the shimmer. So you pick up the jar you have used for two years and turn it...

The question usually arrives at the worst moment. The cake is done. It looks beautiful. And someone at the table asks whether that shimmer is plastic. It is a fair question, and it has a fair reason behind it. Craft...

Two jars, side by side on the same shelf. Same sparkle through the glass, same unicorn on the front, roughly the same price. One of them is food. The other will not say. That is hard not because the science...