# How to use washing soda

**URL:** https://discourse.cataclysmdda.org/t/how-to-use-washing-soda/29118
**Category:** The Bunker
**Created:** [January 19, 2024, 2:10am UTC](https://discourse.cataclysmdda.org/t/how-to-use-washing-soda/29118 "2024-01-19T02:10:55Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Wasserlaufer](https://avatars.discourse-cdn.com/v4/letter/w/e0b2c6/32.png) [@Wasserlaufer](https://discourse.cataclysmdda.org/u/Wasserlaufer)
#### Post date: [January 19, 2024, 2:10am UTC](https://discourse.cataclysmdda.org/t/how-to-use-washing-soda/29118/1 "2024-01-19T02:10:55Z")

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I can use soap, detergent, liquid detergent, but washing soda doesn’t appear on the list to choose from, despite thousands of units around, some in box, some just lying on shelf.

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### Author: ![ProfoundDarkness](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/profounddarkness/32/2581_2.png) [@ProfoundDarkness](https://discourse.cataclysmdda.org/u/ProfoundDarkness)
#### Post date: [May 1, 2024, 4:31pm UTC](https://discourse.cataclysmdda.org/t/how-to-use-washing-soda/29118/3 "2024-05-01T16:31:37Z")

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Based on the description I think it’s used in glass work rather than cleaning filthy clothing. The hitchhiker’s guide lists it as a component in a few chemical recipes (as well as glass making). Washing Soda + Slaked Lime + water = lye, then lye + tallow/oil + water = soap bar.