a mixture of warm water and white vinegar, then let the acid do the work. White vinegar contains acetic acid, which helps dissolve alkaline mineral deposits without scrubbing.
She never made it fussy. Her usual ratio was about 1 cup of white vinegar to 1 quart of warm water for a small batch, or enough to fully cover the cloudy area of the glass. Then she’d leave the glasses alone for 15 to 30 minutes. That was the whole “trick,” and honestly, that’s why it has lasted in my kitchen
