IF YOU’VE NEVER PUT IT IN THE WASHING MACHINE, HERE’S WHY YOU SHOULD: UNEXPECTED RESULTS

Place the second half of the lemon inside the washing machine drum.
Run an empty wash cycle (without clothes) at 60 degrees.
The lemon and toothpaste will clean the inside of the washing machine and eliminate bad odours.
Alternative:
Put baking soda in the detergent compartment to soften and perfume clothes without chemicals.