Laundering by hand involves soaking, beating, scrubbing, and rinsing dirty textiles. Washing suits regularly, and rinsing gloved hands in vinegar minimizes attraction. Any dishwashing liquid may contain bleach, enzymes, or rinsing aids. Mild detergent or ethanol may be applied, followed by rinsing with tap water. There are cultural divisions over rinsing and drying after washing. Nasal irrigation involves rinsing the nasal cavity regularly with salty water or commercial saline solutions. Most modern barbershops have special barber chairs, and special equipment for rinsing and washing hair. The bather should enter the water only after rinsing or lightly showering. Filter media can be cleaned by rinsing with solvents or detergents. Foaming or rinsing is not necessary. Rinsing, draining, and salting the sliced fruit before cooking may remove the bitterness. These include soaping, rinsing and finishing. The bottles have traditionally been made of glass, which required cleaning and rinsing between samples. After draining and then rinsing seeds at regular intervals, the seeds then germinate, or sprout. They claim that spills can be rectified by diluting with water and rinsing away.