Historical clue formulations

• Foundry waste — 2026-02-04
• Pyroclastic material — 2026-01-31
• Mining waste — 2026-01-29
• Steelmaking byproduct — 2025-03-15
• Smeltery waste — 2023-07-08
• It's a waste — 2022-01-21
• Smelting byproduct — 2021-11-30
• Dross — 2020-01-25
• Foundry detritus — 2019-08-12
• Smelting refuse — 2018-09-24
• Smeltery refuse — 2018-09-01
• Metal refuse — 2018-07-30
• Refinery waste — 2017-11-28
• Smelting residue — 2017-06-29
• Smelting waste — 2016-11-14
• Criticize, in British slang — 2016-11-06
• Smelting waste — 2016-08-07
• Some industrial waste — 2016-05-14
• Coal-mining waste — 2015-08-09
• Smelting residue — 2015-07-06
• Refinery waste — 2015-06-22
• Smelting waste — 2015-01-26
• Filaments in wrought iron — 2015-01-23
• Bad-mouth, in Britain — 2014-10-05
• Metal waste — 2013-09-16
• Refuse at a mill — 2011-08-06
• Denigrate, in English slang, with "off" — 2010-12-02
• Misses — 2010-09-02
• Metal refuse — 2008-04-13
• Refinery waste — 2008-03-25
• Waste — 2008-03-07
• Waste — 2006-08-13
• Dross — 2006-05-04
• Refined waste — 2006-03-27
• Waste material — 2005-12-13
• Smeltery refuse — 2005-11-29
• Smelting waste — 2005-08-22
• Waste — 2005-04-17
• Steel mill by-product — 2003-08-05
• Refuse to get rid of — 2003-08-03
• Waste — 2002-08-17
• Coal waste — 2002-07-08
• Smelting waste — 2002-06-13
• Mill by-product — 2002-05-05
• Smelter stuff — 2002-01-10
• Smeltery refuse — 2001-07-11
• Smelting byproduct — 2001-04-10
• Smelter's waste — 2001-01-15
• Furnace waste — 2000-10-19
• Waste — 2000-05-17