How to prevent efflorescence on concrete outdoor ottomans?

Efflorescence, the white powdery residue that forms on concrete surfaces, can be a common issue for outdoor ottomans. To prevent it, start by selecting high-quality, low-alkali concrete mixes for your furniture. Apply a penetrating concrete sealant to block moisture absorption, which is the primary cause of efflorescence. Regularly clean your ottomans with a mild detergent and water to remove dirt and salts before they crystallize. Avoid using de-icing salts nearby, as they can contribute to the problem. For existing efflorescence, scrub the surface with a vinegar solution or a commercial efflorescence remover, then reseal the concrete. Proper maintenance and proactive sealing will keep your outdoor ottomans looking pristine for years.