Start with a container and kitchen scraps

You can begin composting with almost no equipment: a bin, a pile in your yard, or even a bucket under your sink. The simplest setup is a sealed container—a plastic storage bin with holes drilled in the bottom works, or you can buy a compost bin from a garden center for $30 to $150. Fill it with alternating layers of "brown" materials (dry leaves, shredded paper, cardboard) and "green" materials (fruit and vegetable scraps, grass clippings, coffee grounds). Keep it moist like a wrung-out sponge and turn it every week or two with a shovel or pitchfork.

If you have no yard space, a small countertop bin or even a sealed bucket in a closet will work for a few weeks at a time. You can then take the contents to a community garden, a friend with a yard, or a municipal compost drop-off site. Many cities and towns now run these sites for free or a small fee, and they accept what home bins cannot—meat, dairy, and oily foods.

Key Takeaways

  • You need only a container, brown materials (leaves and paper), and green materials (food scraps and grass) to start composting.
  • Keep your pile or bin as moist as a wrung-out sponge and turn it every one to two weeks to speed decomposition.
  • Avoid meat, dairy, oils, and pet waste in a home bin, as these attract pests and create odors.
  • Finished compost is ready to use in about two to six months, depending on how often you turn the pile and what you add to it.
  • If you have no yard, a small indoor bin or bucket can hold scraps until you take them to a community compost site.

Gather brown and green materials in the right ratio

The speed of decomposition depends on the mix. Aim for roughly three parts brown to one part green by volume. Brown materials are dry and carbon-rich: fallen leaves, shredded newspaper, cardboard, wood chips, and straw. Green materials are nitrogen-rich and moist: fruit and vegetable scraps, grass clippings, plant trimmings, coffee grounds, and tea bags (remove the staple first).

If your pile smells like ammonia or rotten eggs, you have too much green and not enough brown. Add shredded paper or dry leaves. If it is not breaking down and smells musty, it may be too dry—add water or more green scraps. The pile should feel warm in the middle as bacteria work, which is a sign decomposition is happening.

What not to put in your home compost bin

Meat, fish, bones, dairy, oils, and fats will attract rats, raccoons, and flies, and they create strong odors. Avoid them in a home bin. Pet waste (dog or cat feces) can harbor harmful pathogens and should never go in compost you plan to use on vegetables. Diseased plants and weeds with seeds may spread problems to your garden.

Glossy or colored paper, coal ash (wood ash is fine in small amounts), and treated wood should not be composted. Citrus peels, onions, and garlic can slow decomposition, but small amounts are acceptable. If you want to compost meat, dairy, or oily foods, take them to a municipal or commercial compost facility instead—these operate at higher temperatures and can break down materials home bins cannot.

Choose a location with the right conditions

Place your bin or pile in a spot that gets partial shade and is close to a water source. Full sun can dry out the pile too quickly; full shade slows decomposition. A location near a garden hose makes it straightforward to add water when needed. Make sure the ground beneath is bare soil or grass, not concrete—this allows drainage and lets beneficial organisms move in and out.

If you are composting in an apartment or small space, a sealed indoor bin works best. Keep it in a cool closet, under the sink, or on a balcony. Empty it into a larger outdoor pile or take it to a drop-off site every few weeks. Sealed bins produce less odor than open piles, though they decompose more slowly.

Turn your pile regularly to speed decomposition

Turning means mixing the pile with a shovel or pitchfork so that materials from the outside move to the center, where it is warmest. Turn every one to two weeks for fast composting (finished in two to three months), or turn less often if you are patient (finished in four to six months or longer). Each time you turn, add a layer of brown material to keep the ratio balanced.

You do not have to turn at all—a pile left alone will eventually decompose, but it takes much longer and may attract pests. If you use a tumbling bin (a barrel on a stand that you rotate by hand), you can turn it more easily without a shovel. Some people use a compost aerator, a long tool you push into the pile and twist to mix it in place, which is less work than turning with a shovel.

Know when your compost is ready to use

Finished compost looks like dark, crumbly soil and smells earthy, not like rotting food. You should not be able to see the original materials—they have broken down completely. This usually takes two to six months, depending on how often you turn the pile, the mix of materials, and the temperature. Cooler seasons take longer.

You can use finished compost in vegetable gardens, flower beds, potted plants, and lawns. Mix it into the top few inches of soil or use it as mulch on top. There is no risk of over-explore compost—it will not burn plants the way chemical fertilizer can. Start a new pile while you use the finished batch, so you always have compost in progress.

Troubleshoot common problems

Smell like rotten eggs or ammonia: Too much green material or not enough air. Add brown material and turn the pile more often. Pile is not heating up or breaking down: Not enough green material, too dry, or too cold. Add grass clippings or food scraps, water it, and wait for warmer weather. Pests or rodents: You have meat, dairy, or oily food in the bin. Remove it and bury food scraps deeper in the pile, or switch to a sealed bin.

Pile is soggy: Too much water or poor drainage. Add brown material and turn it to let air in. If the bin is on concrete, drill more drainage holes or move it to bare ground. Slow decomposition: This is normal in cold weather or if you turn infrequently. Speed it up by turning more often, adding more green material, or waiting for spring.

Frequently Asked Questions

Can I compost in winter?

Yes, but decomposition slows significantly in cold weather. A pile will still break down, just over several months instead of weeks. In very cold climates, an insulated bin or a pile in a sheltered spot will stay warmer. You can keep adding scraps all winter and let the pile finish in spring.

Do I need to buy special compost starter or bacteria?

No. Bacteria and fungi are already in soil, leaves, and food scraps. A handful of finished compost or garden soil mixed into a new pile will speed things up slightly, but it is not necessary. Your pile will decompose on its own.

Can I compost bread, pasta, and grains?

Yes, in small amounts. These materials break down quickly but can attract pests if you add too much. Bury them in the center of the pile under brown material, or chop them into small pieces so they decompose faster.

What if I do not have space for a big pile?

A small bin or bucket works fine. Empty it every few weeks into a community compost site, or give it to a friend or neighbor with a yard. Many cities now offer free drop-off locations for food scraps and yard waste.

Can I use compost from my bin on vegetables?

Yes, as long as you did not add meat, dairy, oils, or pet waste. Finished compost is safe and beneficial for all plants, including vegetables, herbs, and fruits. Mix it into the soil before planting or use it as a top layer of mulch.