Question 1

What materials can I compost?

Accepted Answer

You can compost most fruit and vegetable scraps, coffee grounds, tea bags, shredded paper, cardboard, leaves, and yard waste. Avoid meat, dairy, and oily foods.

Question 2

Why does my compost bin smell?

Accepted Answer

A smelly bin usually means too much moisture or too many nitrogen-rich materials. Add dry browns like shredded paper or leaves and mix the bin to improve airflow.

Question 3

How long does composting take?

Accepted Answer

Depending on the method, composting can take anywhere from 2 weeks to 12 months. Hot composting is fastest, while cold composting and worm composting take longer.

Question 4

What is the difference between hot and cold composting?

Accepted Answer

Hot composting actively manages carbon-to-nitrogen ratios, moisture, and turning to reach temperatures above 130°F (54°C), breaking down waste in weeks. Cold composting is a passive approach where you add materials over time with minimal management — it takes months but requires almost no effort.

Question 5

Can I compost indoors?

Accepted Answer

Yes. Vermicomposting (worm bins) is the most popular indoor method and works well under the kitchen sink or in a basement. Bokashi composting is another indoor-friendly option that ferments all food waste including meat and dairy in an airtight bucket with no odor when sealed properly.

World Composting Blog