Review of Pineapple Flavor-TFA:

I use this pineapple mostly for a pineapple upside down cake recipe. It is a super sweet & a potent flavor concentrate, so you don't need to use much at all. In my recipe, which also calls for 4 other flavors, a combined total of 14% flavoring, I only use 2%. I could probably reduce it down to 1.5% & not lose much flavor too. 

I recommend steeping juices with this flavor & definitely leave the cap open for at least a few days, and even better yet a week or longer, if you can wait. I'm not a patient person, so sometimes I don't wait as long as I should, but making 120 ml batches allows me to use what I have while waiting for a new batch to steep. That's my little trick to steeping since I have very little patience. Ha ha.