What IS lavender oil?
b"This week we take a teeny tiny step into the vast, intimidating sea of essential oils. Not to worry, we're sticking to the chemistry. And we're exploring one of the smelliest, purply-est ones. Firstly, what is lavender oil? And how do we get it out of the lavender plant? And what does it do? And can I put it on my meatball sub?"