What is the best non-toxic way to clean grout?
Chemicals with a high PH number like bleach can harm your floors. It eats away at the components in the grout. Try to avoid anything with a damaging PH number. If you're not sure, check with a professional about cleaning tile floors.
What is the fastest way to clean large amounts of grout?
If you want to save time and avoid the extensive elbow grease that comes with large amounts of grout, call a professional. Otherwise, you may have to purchase large equipment and set aside some time to fight the dirt and grime in the cracks. Unfortunately, there isn't a way around the scrub and rinse method without professional help.