Silica gel packets are primarily used as desiccants, absorbing moisture to keep items dry and prevent damage from humidity. They are commonly found in packaging for various products like shoes, electronics, and food items to absorb moisture and prevent issues like mold, mildew, and spoilage. You can use silica gel many times, when it's full of water/moisture, you can heat it up to release the water and use it again. Insoluble in Water: Silica gel material doesn't dissolve in water, and stays solid even when it gets wet