Safety, Testing, and Storage
Colorfastness varies widely, even within similar fabrics. Test diluted solutions on an inside seam or hem, wait ten minutes, then check for color shift. Adjust strength, shorten contact time, and always rinse thoroughly to finish.
Safety, Testing, and Storage
Fresh enzyme gels and citrus mixes are most potent within forty-eight hours. Refrigerate, label jars with dates, and discard if odor changes. Soap nut concentrate lasts longer but benefits from refrigeration and a clean spray nozzle.