Answer:
They established their own saltworks
Explanation:
When America lost its salt supply after declaring independence from England, they got their salt "by establishing their own saltworks."
Following the declaration of independence and the stoppage of imported salt supply, the Americans began establishing their own saltworks through Cape Cod. The production process involves using wind power for drying, combined with natural solar energy to remove the water and a distinct rolling canvas roof that prevents the rain from falling on it and yet still allow the sun
