Most of the time, no. A moist but not dripping compost is ideal. Even though kitchen and yard waste normally have plenty of moisture, adding more water might chill and slow down the composting process. Adding water to compost 'tea' may not be the greatest option for gardeners who wish to utilize it as a liquid fertilizer. Compost tea is the subject of the following discussion. Even if you reside in a dry climate, adding a small amount of water will assist wet the contents, so be cautious.