Sustainability & Environment

An espresso machine produces a compressed disk of spent coffee grounds — called a ‘puck’ — after each shot. A household making 1-3 espressos daily produces 100-300 pucks per month, totaling roughly 1-3 pounds of spent grounds. These pucks are one of the cleanest compost inputs available: high nitrogen content, near-perfect moisture, no contamination, and…

Composting at high altitude — above 5,000 feet, increasingly above 7,000 feet — presents challenges that lower-elevation composters don’t face. Thinner air affects microbial respiration; lower atmospheric pressure speeds water evaporation; high UV exposure can sterilize pile surfaces; lower temperatures slow decomposition; and the often-dry climate adds moisture management complexity. Composters in Denver, Boulder, Albuquerque,…

Indoor houseplants outgrow their pots over time. A pothos that started in a 6-inch nursery pot in year one may need an 8-inch pot by year two and a 10-inch pot by year three. When you repot, you generate organic waste: old root-bound soil, broken pieces of dead leaves, sometimes the old pot itself. Most…

Oven spills are inevitable in any active kitchen — bubbling lasagna, dripping pie filling, exploding food experiments. The conventional response is commercial oven cleaner: caustic chemical sprays that work fast but produce hazardous fumes, require ventilation, can damage some oven surfaces, and arrive in plastic packaging that ends up in landfill. The natural alternative —…

Memorial Day gatherings — backyard barbecues, family picnics, community events — typically feature centerpieces that reflect patriotic themes. The conventional approach uses synthetic red, white, and blue decorations: plastic flags, foil banners, synthetic ribbon-wrapped vases, plastic-flower arrangements. Most of this decoration goes to landfill after the holiday. Compostable alternatives exist for nearly every Memorial Day…

Fish tank water from regular cleaning is one of the most underused garden resources. The water contains fish waste (dissolved nitrogen), beneficial bacteria, dissolved nutrients from food residue, and trace minerals — essentially a free liquid fertilizer that most aquarium owners pour down the drain. A typical 20-gallon freshwater tank produces 5-10 gallons of nitrogen-rich…

Black soldier fly larvae (Hermetia illucens) are increasingly used in European industrial composting operations as a complement to or replacement for conventional compost processing. The larvae consume food waste rapidly — roughly 2-4x their body weight per day — and produce protein-rich frass (insect waste) that’s compostable and valuable as fertilizer. The larvae themselves are…

School composting programs differ from stadium or restaurant programs in important ways: educational integration is central; student involvement is both opportunity and challenge; food waste volumes are predictable but seasonal; cafeteria operations have specific compliance requirements. A 500-student elementary school can divert 8-15 tons of food waste annually through a well-run composting program. A high…

Yes, you can compost citrus peels — orange, lemon, lime, grapefruit, tangerine — but with some caveats. The common warning that citrus peels are too acidic for compost is partially true and partially exaggerated. Small amounts pose no problem. Large quantities can affect pile pH and worm populations in vermicomposting. The citrus oils slow decomposition…

Packing a picnic basket with compostable items rather than conventional plastic and foam means choosing materials that handle transport, weather, and the practical demands of outdoor eating. Compostable plates, cups, cutlery, napkins, food wrapping, and serving containers all exist, but not all work equally well in picnic conditions. A picnic in a car-shaded park with…

The plastic linings on compostable cups, bowls, and food packaging are usually PLA (polylactic acid) or PHA (polyhydroxyalkanoate) — bioplastics derived from corn or sugarcane, not petroleum. They function structurally like conventional plastic linings (water resistance, grease resistance, durability) but break down in industrial composting along with the paper or fiber substrate. Some compostable items…

Funeral receptions and memorial gatherings are practical events that need to feed family and friends during a difficult time. Choosing compostable tableware for these events allows the gathering to focus on remembrance and connection without leaving a substantial waste impact behind. A typical funeral reception with 60-100 attendees generates 8-18 pounds of waste with conventional…