Extractor for an aerosol-generating device

An extractor for extracting an aerosol-forming substrate from an aerosol-generating device, the extractor being configured to connect to the aerosol-generating device and comprising:

• a base and one or more side walls extending from the base,
• wherein each side wall of the one or more side walls has an inner surface defining a cavity configured to receive an aerosol-forming substrate,
• wherein said each side wall is provided with a marking,
• wherein the marking may form all or part of an indicia and/or comprise at least one line, and
• wherein the marking extends around an entire perimeter of the cavity.

An extractor for extracting an aerosol-forming substrate from an aerosol-generating device, the extractor being configured to connect to the aerosol-generating device and comprising:

• a base and one or more side walls extending from the base,
• wherein each side wall of the one or more side walls has an inner surface defining a cavity configured to receive an aerosol-forming substrate,
• wherein said each side wall is provided with a marking,
• wherein the marking may form all or part of an indicia and/or comprise at least one line, and
• wherein the marking comprises a dotted line.