Katherine Swift is the founder of OMGTeas, an organic matcha tea business in England. 

She started the business after her mother was diagnosed with cancer, and she wanted to explore every possible way of helping her mother's recovery - including nutrition and the impact of antioxidants. Several years later, she now has a successful business selling both premium grade matcha powder and ready to mix "grab and go" bottles, with stockists all over the UK as well as a vibrant ecommerce business.

In this wide ranging interview, we get down to the details of matcha tea grades, packaging (of course!) and how to market a product that many people have never even heard of before.