Tips & Hints > Housekeeping > To Toughen Lamp Chimneys and Glass-ware

To Toughen Lamp Chimneys and Glass-ware

Immerse the article in a pot filled with cold water, to which some common salt has been added. Boil the water well, then cool slowly. Glass treated in this way will resist any sudden change of temperature.

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Source

The White House Cookbook (1887).


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