I know this is an off topic, but not sure where to ask this question. However, I got a feeling a lot of people here will be able to answer this relatively easily.
I have made a herbal tea drink. It tastes great. I am loving it. The problem is how can I preserve it, so to extend its shelf life? I am really in the dark in this.
I am planning to offer it for sale in my cousin's local convenient store. Though, that's why shelf life is quite important.
Is there something I should be adding?
Sorry for such a silly question, but would really love to learn.