Remove deodorants (aluminum joints)
Most deodorants contain aluminum compounds (hydrates). These form stubborn stains. I have tried everything (spot salts, benzene, citric acid and various prewash sprays, chlorine cleaners or alleged deodorant stain removers.
What really works is hydrochloric acid (25% tig)! You get the Baumakt for about 4 € / l. A few drops are enough in the spot. Leave for three minutes and then put in the washing machine or hand wash / rinse.
With that, I even managed to get rid of stubborn "encrustations" completely. I should have disposed of the T-shirts otherwise.
Caution: Use Hand School and air well. The hydrochloric acid does not attack the textiles and there is no discoloration. But please test yourself first!
