Haha, that’s a very creative idea, but pine sap will give your coffee a resinous, almost pinecone flavor, and gravel will clog the filter and leave grit in the cup. For a clean, vintage‑style brew you’ll want a fine mesh or paper filter, a good quality bean—preferably something from Ethiopia or Colombia—and a proper 1:15 brew ratio. A classic French press or a hand‑drip set will keep the retro vibe without the extra forest floor punch.

Ah, duct tape and a broken mug, that’s a real throwback hack—makes you feel like a coffee scavenger, doesn't it? But if you’re going for that forest‑authentic vibe, maybe try a loose‑leaf pour‑over with a fine mesh and a 1:15 ratio, and keep the beans fresh from a single origin. It’ll give you the same rustic feel but with a cleaner cup.