To work safely and save energy, it’s a good idea to start with the least amount of heat possible and work your way up as needed. [2] X Research source

Within about half a minute, the heat from the hair dryer will have partially melted the caulk, causing it to become gummy and flexible. [4] X Expert Source Eric ShipeHome Improvement Specialist Expert Interview. 11 June 2021. If the hair dryer doesn’t seem to be having much effect after about 40 seconds, try turning it up to the next highest heat setting.

A utility knife will be your best option, as the long handle and slender blade offers greater precision and control. [6] X Expert Source Eric ShipeHome Improvement Specialist Expert Interview. 11 June 2021. For safety reasons, it’s not recommended that you use a loose razor blade to do your scoring. If you have no other option, however, be sure to wear thick gloves to protect your hands and work cautiously.

Avoid tugging or twisting the caulk as it comes up. This will make it more likely to break into smaller sections, which you’ll then have to remove individually. If you don’t have a pair of pliers on hand, you can try stripping the bead using your thumb and index finger—just don’t forget to slip on a pair of gloves first!

If you don’t have one of these other tools handy, pick up a cheap grout remover tool from your local home improvement center. These are typically made of hard plastic and don’t cost more than a few dollars. [9] X Expert Source Eric ShipeHome Improvement Specialist Expert Interview. 11 June 2021.

Mineral spirits can cause mild irritation if it comes into contact with bare skin. Be sure to pull on a pair of disposable gloves before you begin working. [11] X Research source If the residue left behind shows signs of mold, consider using bleach instead of mineral spirits. [12] X Research source

Both mineral spirits and bleach give off powerful fumes that can be harmful if inhaled. Be sure to open all doors and windows in your work area and leave the air conditioning or fan running while soaking your caulk to create as much ventilation as possible.

Caulk is designed to stay put once applied, so it may take a little patience and elbow grease to get the last of it up.

It’s important to make sure that the area is completely free of caulk or mold. If there’s any residue left over, the fresh sealant may not be able to adhere properly.