Food waste is a daunting problem - but we each hold a key to the solution in our own home

Over a decade Koren Helbig has come up with some simple habits to reduce food waste at her place. Here are some ideas that may work at yours, tooChange by degrees offers life hacks and sustainable living tips each Saturday to help reduce your household's carbon footprintGot a question or tip for reducing household emissions? Email us at changebydegrees@theguardian.comWe've all been there - reaching into the fridge to find a forgotten cucumber shrivelled beyond recognition, or a half-eaten bag of baby spinach quietly collapsing into sludge.Australian households throw out almost 2.5m tonnes of food every year - or the equivalent of 7.7m meals a day. Continue reading...