Our refill packaging is designed to be supremely earth-friendly and will compost both in your food waste at home as well as industrial compost facilities. We have designed our packaging to keep the contents safe from moisture. However, while it will survive a small amount of moisture exposure, it is not meant to be submerged in a bucket full of water. So please store it in a cool, dry place and avoid getting it soaked in water from an unintended under-the-sink leakage.