I happened to come across a great use for lemon juice a few weeks ago, after I had discovered that our dishes were occasionally coming out of the dishwasher with ugly yellow-brown stains.
I found out that the yellow-brown staining is from iron and manganese in the water. The suggested solution was to run the discolored dishes through the dishwasher using citric acid crystals instead of detergent. Citric acid dissolves rust and other mineral deposits.
I didn’t have citric acid crystals, but I did have lemon juice. And I know that lemons, being a citrus fruit, have citric acid. A bright idea was born (pun intended)!
I soaked my stained dishes in a basin of water with 1/4 cup of lemon juice and let them sit for about half an hour. And voila! The stains were gone, and the dishes sparkled!