The cause of stiffness in laundry is usually that too much detergent has been left in the clothing. To make your towels softer, use less detergent than normal, and add white vinegar to the first rinse cycle. You may also want to add an extra rinse cyle when washing towels. Line dried towels do not get as fluffy (although they may smell more fresh being dried outdoors) and soft as ones dried in the dryer.
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