Drop-In Hot Food Wells are perfect for dropping into counters and work areas. All Drop-In Food Wells are built for holding hot foods. In other words, hot-to-hot for holding only. The Drop-In Food Well should not be used for cold to warming purposes. APW Hot Food Drop-Ins have a sealed well that are sold with and without drains, and the drains have a common manifold. Hatco does the same and gives you the option of having independent drains if required. We always suggest using water within the Drop-In Food Well. The recommended water level is to be 1/8" to 1/4" deep and not to be used with copious amounts of water. The thin layer of water will rapidly vaporize creating a steam bath within the well. This is the most efficient way to heat the pan with food. That said, one should always look to see if the well needs to be replenished with water.