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Epoxy is the best sealer for concrete countertops. It fills in gaps, rough areas, and imperfections for a smooth finish and will usually last the life of the concrete. Other options include acrylic and polyurethane sealers, which protect the countertops from stains but must be reapplied every few years to maintain proper surface protection.

Rubbing alcohol won’t damage most countertops, and you can mix it with water to create a disinfecting spray to keep your kitchen clean. It’s safer than using bleach on countertops, which can stain and cause discoloration. Be careful with rubbing alcohol when it comes to lacquered or varnished surfaces, though.

Terrazzo is considered an eco-friendly and sustainable material because it is often made from recycled materials, such as chips of glass, marble, or polished metal, which helps reduce waste. While the epoxy resin used as a binder has its own environmental impact, it requires relatively low energy for production and does not release volatile organic compounds (VOCs) once fully cured, which helps lower the overall carbon footprint.

The best finish for butcher block countertops depends on their intended use. If you plan to use the surface for food prep and cutting, a food-safe oil like mineral oil or tung oil is recommended. These oils provide a water-resistant, velvety matte finish but require regular reapplication. If the countertops are primarily for appearance or serving, a stain can add color and sheen. Polyurethane is another option, but it tends to show scratches more prominently, making it less ideal if you plan to cut directly on the surface.