Do not overload washer.
Wash towels with towels and avoid mixing anything that might damage or pull the loops or yarns of the terry fabric such as buttons, zippers etc.
Use mild detergent
Do not pour detergent directly on fabric; add the detergent to the water first and then add your linens.
Do not use bleach or detergents with bluing agents or whiteners- these may weaken fibers and cause them to yellow.
Unless terry is very stained or soiled you may reduce the recommended amount of detergent.
Use a delicate spin cycle
Fabric softeners and dryer sheets are not recommended as their chemicals prevent the bed linens from naturally becoming softer over time. Fine terry will begin to be even softer and absorbent after 3-4 washings.
Terry should be separated into light and dark colors and washed separately from anything else.
Tumble dry on low to medium heat.
Iron if desired, low heat.