The outcome of all three methods showed noticeable improvements. The area cleaned with lemon juice can be seen in front of the lemon slice, the middle section was cleaned with Oxiclean, and the sulfamic acid cleaner was applied to the rightmost portion.
The verdict: all methods showed results, but Oxiclean emerged as the winner with lemon juice a close second. The latter would be an excellent option for those preferring organic solutions.
Despite the residual white film left by the Oxiclean, which required a second mopping, I chose this method for the remainder of the bathroom. The difference is remarkable! Even though my grout is gray and will never be stark white, it definitely looks cleaner and less stained than before. I hope you find this information useful in tackling your own grout-cleaning task! Feel free to share your own experiences and methods in the comments below.
