After painting there are several containers in the Berlin household. Some are almost empty, others still contain paint or varnish. Taking everything away together as “empty buckets” would conceal the actual contents. First clarify which unusable stocks are present and which local disposal route fits them.
Do not reduce the contents to the packaging
Berliner Stadtreinigung lists paints, varnishes and solvents at its hazardous waste collection points and warns against disposing of hazardous substances via household waste or wastewater. It asks, where possible, for the original packaging. [SCHADSTOFF] On its residual waste page it also names dried-out paints as permissible residual waste. [TROCKEN] The distinction must be based on the actual stock.
Our editorial recommendation: Use clearly legible product information and known residual quantities for the inquiry. A container with unknown contents remains unknown. The article does not recommend opening, smelling or mixing tests for identification.
Discuss unclear cases before the trip
If product, condition or suitable acceptance are unclear, contact the BSR. Also describe damaged or leaking packaging already when making the enquiry. Have the appropriate handling clarified before you move anything or assemble it for transport. The general acceptance list is not a clearance for every packaging or transport situation.
Not every recycling centre offers every type of acceptance. Therefore check the appropriate location and its current conditions for your exact stock. Quantities, fees, opening hours and a possible commissioning by a business are clarified individually; this article does not promise any free arbitrary drop-off.
Do not improvise your own waste treatment
The mention of dried-out paints here does not constitute instructions to deliberately dry out liquid residues, dilute them or mix them with other substances. An unknown chemical does not become ordinary residual waste merely because its container looks like a paint bucket.
Keep the existing labelling for assignment and clarify any further necessary steps with the responsible acceptance point. The desire for a few transport containers is no reason to combine unclear contents.
Fictitious case: Two buckets, two open questions
A household finds, in addition to a known leftover of wall paint, an older can of varnish with a poorly legible label. Before disposal it enquires with the BSR using the securely known information. The unknown content is not generally treated as dried wall paint. Location, acceptance and handling are related to the actual containers.
The result is a confirmed disposal route for a specific Berlin household stock. No private hazardous substance classification or treatment takes place. Outside Berlin, the disposal authorities responsible there with their own conditions are authoritative.