This is freshly brewed, small batch per order. Each bottle makes 3 gallons of worm tea when diluted with water. NOTE: Microbes in worm tea need food & oxygen to survive, just like any other living organism. Once we bottle it up, the only food supply they have is what's inside the bottle. While worm tea doesn't technically expire, it's best to use it while it's fresh for the most microbes and the highest quality nutrients.Shake well before using______________________________________________**Not for human consumption**