Apply the “is it shaped like packaging?” test and tell vidrio from cristal.
The main rule
The yellow container is for packaging, not for plastic
Almost everyone who moves to Spain thinks the yellow container is the “plastic bin.” It isn't, and the mistake is costly: in 2024, 33.4% of what was in yellow containers wasn't packaging (Ecoembes data). One item in three doesn't belong there.
The yellow container collects envases — packaging. Any kind: plastic, metal, multilayer carton. But a plastic thing that never packaged anything doesn't go in, even if it's made of exactly the same plastic.
A TEST THAT WORKS ON ANY UNFAMILIAR ITEM:
Has this item ever packaged anything?
A yogurt cup — yes, that's an envase. A toy, a hanger, a toothbrush, a pot, a plastic basin — no. Same material, different answer.
THE SECOND MISTAKE IS BUILT RIGHT INTO ENGLISH. English has one word, “glass.” Spanish has two, and they are different streams:
— vidrio — glass packaging: bottles, jars, perfume and cosmetic bottles. That's what the green igloo is for.
— cristal — crystal, window glass, mirrors, drinking glasses, light bulbs. It doesn't go in the igloo.
As long as you think “it's glass” in English, you'll keep throwing drinking glasses into the green container. Hence the rule: only what was packaging goes in the igloo.
Since January 1, 2025, there's a better reminder than memory: packaging must state its container right on itself — “Contenedor amarillo,” “Contenedor azul.” If in doubt, turn the package over.
Lesson notes
The yellow container is for packaging, not for plastic
Almost everyone who moves to Spain thinks the yellow container is the “plastic bin.” It isn't, and the mistake is costly: in 2024, 33.4% of what was in yellow containers wasn't packaging (Ecoembes data). One item in three doesn't belong there.
The yellow container collects envases — packaging. Any kind: plastic, metal, multilayer carton. But a plastic thing that never packaged anything doesn't go in, even if it's made of exactly the same plastic.
A TEST THAT WORKS ON ANY UNFAMILIAR ITEM:
Has this item ever packaged anything?
A yogurt cup — yes, that's an envase. A toy, a hanger, a toothbrush, a pot, a plastic basin — no. Same material, different answer.
THE SECOND MISTAKE IS BUILT RIGHT INTO ENGLISH. English has one word, “glass.” Spanish has two, and they are different streams:
— vidrio — glass packaging: bottles, jars, perfume and cosmetic bottles. That's what the green igloo is for.
— cristal — crystal, window glass, mirrors, drinking glasses, light bulbs. It doesn't go in the igloo.
As long as you think “it's glass” in English, you'll keep throwing drinking glasses into the green container. Hence the rule: only what was packaging goes in the igloo.
Since January 1, 2025, there's a better reminder than memory: packaging must state its container right on itself — “Contenedor amarillo,” “Contenedor azul.” If in doubt, turn the package over.
What the system looks like
🟡 Yellow (envases ligeros) — packaging: plastic, metal, brik
🔵 Blue (papel y cartón) — paper and cardboard
🟢 Green, the igloo (vidrio) — glass PACKAGING only
🟤 Brown (orgánica, biorresiduos) — food waste
⚫ Gray (fracción resto) — everything else, general waste
The brown container isn't a local initiative but a national obligation: Ley 7/2022, Article 25, required separate collection of biowaste by June 30, 2022, in municipalities with more than 5,000 residents, and by December 31, 2023, in all the others.
The sixth destination is the punto limpio: a fenced drop-off site, free for households, that takes whatever doesn't fit in the five bins and mustn't end up in the general stream — electronics, batteries, lamps, paint, used cooking oil, furniture, large sheets of flat glass.
⚠️ A common mix-up: you don't need to take small household items to the punto limpio. A broken drinking glass, a ceramic plate, a toothbrush, a small toy — all of these go in resto. The punto limpio is for large, hazardous, and electronic items.
⚠️ Colors are a convention, not a law. Waste collection is a municipal responsibility, so the palette can vary. The most dangerous trap: in Madrid the color marks the lid, not the body, and an orange lid there means resto. In Catalonia and Zaragoza, though, an orange container is for textiles. We'll go through this in detail in lesson 6.