Table 4. Life cycle inventory and activity data for reusable tumbler washing and end-of-life scenarios

Process	Material	Value	Unit	References
Manual cold/ hot-water washing	Detergent use	2	g	Assumption
Foaming detergent washing	Water use	1	L	[32]
	Effervescent cleaner mass	3.5	g
Dishwasher	Water use	14.5	L/use	[33]
	Electricity consumption	1.0	kWh/use
	Detergent use	20	g/use
	Allocation ratio per tumbler	7.14	%	Assumption
Tumbler cleaner	Water use	1.04	L/use	Assumption
	Electricity consumption	0.197	kWh/use	[34]
	Detergent use	6	ml/use
End-of-life	Recycling rate	95.0	%	[35]
	Landfill rate	5	%
Emission factors	Tap water supply	0.240	kg-CO2-eq./m3	[29]
	Zah, R., soap production, RoW, allocation, cut-off by classification, ecoinvent database version 3.12
	Wastewater treatment	0.58	kg-CO2-eq./m3	[30]
	Natural gas supply, Korea	0.2538	kg-CO2-eq./kWh	[8], [11]
	Korean grid electricity	0.493	kg-CO2-eq./kWh	[11], [12]
	Doka, G., treatment of waste steel, inert material landfill, RoW, allocation, cut-off by classification, ecoinvent database version 3.12