"wild coffee" is popular in Japan! How to make coffee by hand in the wild? Recommendation of outdoor coffee tools

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style) in recent years, Japan's mountain system circle blew a craze for wild coffee to bring coffee utensils to hand-brew coffee in mountain camps. What are the preparations for making coffee, time, place and tools in the wild in order to have the most fun? Japanese wild coffee enthusiast and outdoor coffee tool