We're growing mushrooms from coffee grounds. The ingredients are coffee grounds, a drip filter, and mushroom spawn (pronounced "shukin"). It's very simple, but there's a delicate aspect to it. When you cultivate them, you really come to appreciate how honest and responsive mushrooms are. I'll write about that another time.
That day, I was gazing at the pile of coffee grounds I'd collected, weighing about 17 kg, and thinking about what kind of brewing I should do next, brainstorming recipes. Before I knew it, I was once again sipping coffee and letting my mind race.
Walking around town, I see lots of coffee shops. Just around this corner. Here, and there. This roastery looks cool. This shop's storefront is nice too. I've started noticing more coffee-related shops than before. With so many around, an astonishing amount of coffee must be consumed in Japan. So I looked it up, and it turns out that Japan consumes a whopping 400,218 tons of coffee annually (according to the All Japan Coffee Association). This puts Japan in fourth place, after the EU, the US, and Brazil. In other words, Japan is a coffee powerhouse. I'm sure I'm not the only one who finds themselves drinking coffee every day without even realizing it.

I forgot to take a picture of the bag containing the coffee grounds, so here's just one. I'll tell you what this bag is for in a future post.

