Plasty, kovy a nápojové kartony — yellow containerBrno runs a combined "3-in-1" yellow bin: plastic packaging and bottles, metal cans and foil, and drink cartons (Tetra Pak) all go in together, rinsed enough not to smell and squashed flat. Not packaging with food residue still in it, or dirty polystyrene.
Papír — blue containerNewspapers, magazines, flyers, flattened cardboard boxes, office paper, notebooks without a hard cover, egg cartons. Not greasy, wet or waxed paper, till receipts, or drink cartons — those go in the yellow bin, not blue.
Sklo — green/white duo containerBottles, jars and broken drinking glass or dishes, of any colour — the duo bins (locally called "sovy", owls) split clear glass into the white side and coloured glass into the green side of the same unit. Not ceramics, porcelain, mirrors, window or car glass, light bulbs, or heat-resistant (Pyrex-type) glass — none of those melt the same way and a single piece can spoil a whole load.
Bioodpad — brown containerFruit and vegetable peelings, coffee grounds and tea bags, houseplant trimmings and potting soil, cooled wood ash. Not meat, bones, dairy, eggshells, cooking oil, mouldy plants or pet waste. Brno's rule is stricter than some cities': everything goes in loose — no bags of any kind, including certified compostable ones.
Textil — white textile containerClean, dry clothing and shoes (tied in pairs), soft toys, bedding and curtains — bagged so they stay dry in the container. Not wet, mouldy or heavily soiled textiles, carpets, or offcuts from a workshop; those spoil the whole container's resale value and belong in general waste instead.