TRAFALGAR, Ind. — Goat milk soap is a staple at any craft fair, but for the Hart family, a 4-H project has grown into a thriving business.

TJ Whitmer of News 8 visited Hart Ranch to see how the family turned a soapy hobby into a regional success. While soap can be made from various ingredients, goat milk remains one of the most popular and common bases for local artisans.

The Harts used 210 gallons of milk this year, which is 50 gallons more than last year—a 31% increase in production. That volume translates to an estimated 25,000 to 27,000 bars of soa...