How to Make Compost in a Bucket | 5-Gallon Bin Steps

A standard 5-gallon bucket with a tight lid, 30–50 drilled holes, and a 3:1 ratio of brown to green materials can produce usable compost in roughly 6 weeks.

A sturdy plastic bucket and a drill are all you need to turn kitchen scraps and yard waste into rich soil for your garden. The process takes about a third of the time of a traditional pile, fits on a patio or apartment balcony, and costs around $10 if you purchase the supplies new. Here is the exact sequence that works, from drilling the right holes to knowing when the compost is ready to use.

What Makes a Bucket Work for Composting

Composting in a bucket relies on the same biology as a full-size bin, but in a smaller, closed space. The drilled holes provide airflow; the tight lid traps heat and moisture; the rolling-and-shaking technique replaces the work of turning a pitchfork. The key difference is scale — a 5-gallon bucket handles kitchen waste from one or two people, not a household’s full yard debris.

Tools and Materials You Need

Start with a standard 5-gallon plastic bucket (roughly 24 inches tall) and a lid that snaps on tightly. You will also need an electric drill with a 3/16-inch bit and a sharp knife or pruners for cutting materials. The bucket, lid, and drill bit together cost about $10 if bought new; most of that is the drill bit if you already own a bucket[5].

Drilling the Holes: Size, Count, and Placement

The drill pattern determines airflow and drainage. Go in this order:

• Lid: 10–15 holes, spaced evenly over the surface.
• Sides: 15–20 holes around the bucket’s circumference, roughly 6 inches apart at mid-height.
• Bottom: 10–15 holes, spaced across the floor like a grid.

Use a 3/16-inch bit for initial holes. If you want larger holes (up to ½ inch), start small and work up bit sizes — 8, 5/16, 3/8, then ½ inch — to prevent the plastic from cracking[2][5].

How to Layer the Bucket: Brown to Green Ratio

The right ratio is the single most important step for avoiding smells. Aim for a 3:1 ratio of brown materials to green materials by volume[1].

Brown items are carbon-rich and dry: dry leaves, shredded cardboard, uncoated paper, small twigs, and straw. Green items are nitrogen-rich and wet: vegetable trimmings, fruit scraps, grass clippings, coffee grounds, and crushed eggshells (rinse those first)[7][9].

Add a 2-inch layer of small sticks or twigs at the very bottom of the bucket — this prevents the drainage holes from clogging and creates an air gap below the compost[1][3].

Step-by-Step: Filling and Operating the Bucket Compost Bin

1. Drill the bucket following the hole counts above.
2. Place twigs in the bottom (roughly 2 inches deep).
3. Add a 3:1 ratio of browns to greens — about 6 inches of browns to 2 inches of greens per layer.
4. Saturate with water until every layer is damp but not soggy. The goal is a wrung-out sponge consistency; if water pools at the bottom, you have added too much[1][5][7].
5. Snap the lid on tightly.
6. Roll and shake the bucket on its side or upside down for 30 seconds to mix the contents evenly[1].
7. Let it rest for 48 hours, then open, check moisture, add a small splash of water if dry, and roll/shake again[1].
8. Repeat steps 3–7 each time you add more kitchen scraps until the bucket is about ¾ full. Do not fill past that mark — full buckets lack airflow and slow decomposition[3][7].
9. Stop adding material once the bucket is ¾ full. Seal and roll it to mix one last time. Let it “cook” for 5–7 weeks, rolling and checking moisture every other day[1].
10. Test readiness: the finished compost looks like dark, crumbly soil with no recognizable food scraps. Empty it into your garden beds or potted plants and start the next batch.

If you prefer a readymade turn-key solution, our roundup of tested bucket compost bins covers models with pre-drilled holes, drainage spigots, and odor filters that skip the drill-work entirely.

Common Composting Mistakes That Produce Smells (and How to Avoid Them)

Most failures come from three issues. A table can summarize the fix faster than paragraphs:

Two Bonus Setups: In-Ground Bucket and Double-Bucket Compost Tea

In-Ground Bucket Composting

Bury the bucket 2/3 of the way into the soil, leaving the lid and top few inches above ground. Drill the sides and bottom as described, but skip the twig base — the soil itself will provide drainage. Worms from the ground will enter through the bottom holes and accelerate decomposition. This method is nearly odorless and requires very little rolling since the worms do the mixing[2][8].

Double-Bucket System for Compost Tea

Drill one bucket (the inner bucket) with 15–20 bottom holes and 20 side holes, then nest it inside a second solid (un-drilled) bucket. Fill the inner bucket with the same 3:1 brown:green ratio. Moisture drains into the outer bucket. Collect that liquid every 3–4 days and dilute it with water (roughly 10:1 water to tea) before using it as a plant fertilizer. Do not let the inner bucket sit in standing liquid — the outer bucket needs emptying[3][9].

How Long Until the Compost Is Done?

Bucket compost in warm weather (70°F–90°F) is ready in 5–7 weeks. Cooler temperatures can push it to 8–10 weeks. Signs of done compost: the mixture has shrunk to about half its original volume, has an earthy smell, and no individual pieces of food or leaves are recognizable. If you still see whole eggshells or avocado skins, let it cook another week[1].

Bucket Compost Bin Costs vs. Finished Compost Value (Quick Reference)