How To Remove Coffee Stains from a T-Shirt (feat. Jun Oki)

A1A USA presents HOW TOO’s — a series of quick tips, cheat codes, and straight-up how-to’s from the A1A Beach Club community. From training hacks and recovery tricks to cooking moves, gear fixes, and creative shortcuts, each drop is a slice of DIY wisdom passed around the mats, the kitchen, the studio, and the beach.

Jun did the pour seltzer on stain and suck the coffee out in a DIY style.

He mentioned Utamaro (ウタマロ石けん laundry soap bar – a classic soap used in Japan since the 50s, known for removing stubborn stains from clothing and footwear.

About Utamaro Soap:
Utamaro (ウタマロ) is a traditional Japanese laundry soap widely recognized for its strong stain-removing properties. Characterized by its bright green bar, it has been used for decades in households across Japan to treat coffee, ink, grease, and food stains on fabrics before washing. Its effectiveness and low cost have also made it a standard supply in schools, dormitories, and correctional facilities, including Japanese prisons, where it is issued for uniform and laundry care.