The answer to 'which is better grout or' is that both grout and caulk have their own advantages and the best choice depends on your specific needs. Grout is a durable, waterproof material that is commonly used to fill the spaces between tiles. It provides a strong, long-lasting seal and is resistant to moisture, mold, and mildew. Caulk, on the other hand, is a more flexible sealant that is better suited for areas with movement, such as around tubs, sinks, and windows. Caulk can be easier to apply and is generally less expensive than grout, but it may need to be reapplied more frequently.
When choosing between grout and caulk, consider the specific application, the amount of movement in the area, and your budget. For high-traffic, wet areas like bathrooms and kitchens, grout is often the better choice. For areas with more movement, caulk may be the better option. If you're unsure, it's always a good idea to consult with a professional cleaning technician who can assess your needs and provide a recommendation.