Blue is Paper.
BTW
On the side they say "Tu papel es importante"
This is clever because "papel" means both paper and role.
So it means "your role/paper is important".
Green is Glass.
Don't put any ceramics in here.
Yellow is containers.
This is the most confusing and a category not found in other countries.
It is plastics, aluminium and metal. So:
tins, cans, Tetra-Brik, plastic bottles, plastic bags etc.
Grey is general waste.
Anything that won't fit in any of the above.
I doubt if you will need it but there sometimes are other containers.
For example:
Aceites – Oils
Ropa – Clothing
Zapatos – Shoes
Pilas – Batteries
The above just a basic guide.
If you want to throw away more complicated items you would have to go to the recycling centre.
Here is the address .
Recycling Centre - Punto Limpio Granada
Polígono El Florío,
958806989
Open: Tuesday to Saturday from 09:00 to 20:00.
Sunday from 09:00 to 15:00.
Phone: 958 80 69 89