Doorstep Composting Service

Dead things
becoming
alive again.

We pick up your kitchen scraps — avocado pits, coffee grounds, apple cores — and return finished black soil to your neighborhood. The loop closes quietly, every week.

18,400

lbs diverted this year

340

households served

7

neighborhoods active

N1 mileActive pickup routeLaunching soonAUTUMN 2026 — SERVICE MAP

140°F

peak pile temperature

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Kitchen scraps collected ✦ Thermophilic decomposition ✦ Living black soil returned ✦ 18,400 lbs diverted this year ✦ Closing the loop ✦ Zero waste, full circle ✦ Spring · Summer · Autumn · Winter ✦Kitchen scraps collected ✦ Thermophilic decomposition ✦ Living black soil returned ✦ 18,400 lbs diverted this year ✦ Closing the loop ✦ Zero waste, full circle ✦ Spring · Summer · Autumn · Winter ✦Kitchen scraps collected ✦ Thermophilic decomposition ✦ Living black soil returned ✦ 18,400 lbs diverted this year ✦ Closing the loop ✦ Zero waste, full circle ✦ Spring · Summer · Autumn · Winter ✦Kitchen scraps collected ✦ Thermophilic decomposition ✦ Living black soil returned ✦ 18,400 lbs diverted this year ✦ Closing the loop ✦ Zero waste, full circle ✦ Spring · Summer · Autumn · Winter ✦
Hands scattering dark finished compost into a raised garden bed in spring light

Spring

Returning

01 — Spring

What you give
becomes what grows.

Every Tuesday morning, we collect your bin from the doorstep. Avocado pits, egg shells, coffee grounds, wilted greens — all of it. No sorting required.

Six to eight weeks later, that same organic matter — transformed by heat, microbes, and time — comes back to you as finished compost, ready to press into a raised bed or scatter around your apartment herbs.

01

Place your bin at the door by 7 AM on pickup day

02

We swap it for a clean, empty bin — no waiting

03

Your scraps join a neighborhood windrow, turning weekly

04

Finished compost returned each spring and autumn

02 — Summer

The pile is
alive at 140°F.

In summer, the windrow reaches thermophilic temperatures — hot enough to eliminate pathogens, weed seeds, and the memory of last year's mistakes. This is not passive rot. It is vigorous digestion.

Billions of microorganisms — bacteria, fungi, actinomycetes — are doing the work your kitchen bin started. We turn the pile every five days to feed them oxygen.

Peak temperature

140–160°F

kills pathogens in 3 days

C:N ratio

25–30:1

ideal decomposition rate

Moisture target

50–60%

wrung sponge consistency

Time to finish

8–12 wks

in active windrow

Steaming active compost pile in summer heat surrounded by rich dark organic material

Pile Temp

140°F

Summer

Digesting

Autumn harvest bucket of apple cores, pumpkin pieces, and kitchen scraps on a wooden porch step

"A bucket of apple cores and pumpkin guts on a porch step is not waste — it is the beginning of next year's tomatoes."

Autumn

Gathering

03 — Autumn

What goes in
the bucket.

Autumn is the season of abundance and generosity. Your kitchen is producing its richest scraps — pumpkin guts, apple cores, the last of the summer herbs. All of it belongs in the bin.

We accept

🍎

Fruit scraps

apple cores, peach pits, citrus rinds

🥑

Avocado pits & skins

yes, the whole thing

Coffee grounds & filters

paper filters too

🥚

Eggshells

rinse first if possible

🌿

Wilted herbs & greens

stems, roots, all of it

🎃

Pumpkins & gourds

cut into halves first

Please keep out

Meat, fish, dairyCooked food with oilTreated wood or sawdustPet waste
04 — Winter

Beneath frost,
the work continues.

The pile does not sleep in winter. Below the frozen crust, psychrophilic microbes continue breaking down carbon and nitrogen. Decomposition slows but never stops.

We insulate the windrows with straw and continue weekly pickups through December. Your coffee grounds in January become April's soil amendment.

Cross-section: Winter windrow

FROST & STRAW INSULATIONACTIVE DECOMPOSITION ZONE (35–55°F)MATURING COMPOST (60–90 days)FINISHED COMPOST — RETURNS TO YOU IN SPRING↑ heat

Psychrophilic microbes remain active below 40°F

Winter

Resting

The Seasonal Composting Guide

Learn what the soil
already knows.

A 24-page field journal covering the full composting year — what to collect, when to expect returns, and how to use finished compost in small-space gardens.

The Seasonal
Composting
Guide

Loam · 2026 Edition

LIVING BLACK SOILSUBSOIL

24 pages · Free download

Download the guide

Enter your email and zip code. We'll send the guide instantly — and quietly check if Loam serves your area.

or

Ready to start composting?

$18/month. Weekly pickup. Clean bin swap. Finished compost returned each season.

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