Can I use it straight? Organics Alive Support January 23, 2020 21:51 Not recommended, but usually won't burn if it is fresh. Related articles How long is the brew good for? What happens If I don't’ Pre-activate? How do I pre-activate Mix Kit? I have 1 light or 6 plants, Is OA right for me? How much will one bag of Amendment cover? Comments 0 comments Please sign in to leave a comment.