Clean teak patio furniture with an oil-based soap or a homemade cleaning solution consisting of water with vinegar or water with bleach and detergent. Start cleaning from the bottom of the furniture and work upwards to avoid streaks from dripping cleaner.
Prepare homemade cleaning solutions with 1 gallon of water and add in 1 cup of vinegar or 1 cup each of bleach and laundry detergent. Use a soft bristled brush that is gentle on the wood yet loosens tough grime. Commercial soaps and cleaners may require dilution with warm water as well. Routine dusting or wiping helps protect teak patio furniture.