Tomato powder is exactly what it says it is: dehydrated powdered tomato. And because of that, you can rehydrate it in a 1:1 ratio with water to make tomato paste and use it like you normally would. It can add tomato flavor where just a bit is needed—like stews, chili, and dips—giving dishes a sweet and savory boost.
 
Note about refill bags: 1x refill bag size is the same volume as a large jar. 2x refill bag size is double the volume of a large jar. 3x refill bag size is triple the volume of a large jar.