Green food dye is simply added to the horseradish to give it that famously vibrant look people see at restaurants when they think they're being served wasabi. But even with the condiment's ...

This is mostly due to how hard it is to grow. Wasabi is a super-needy plant. It can be killed by the slightest change in temperature or sunlight. Same. More from Food Wars ...

Powdered real wasabi will still be expensive, but should have the benefit of being used when you need it. True wasabi will contain wasabia japonica, while faux wasabi (and most of us will have to ...

However, according to food bible Taste Atlas, most wasabi served globally is not authentic - it's a blend of horseradish, mustard, and green food colouring. Genuine wasabi is extremely rare due ...