I bought a variety pack of dram-sized bottles of LorAnn flavors oils and have been working my way through them since mid-February. The pack included 12 dram bottles and it took me 3 months, roughly, to go through them all, but there were a few that I discarded before finishing the dram. I used a dropper to dispense the oils into my carbonated water. For just about all of the flavors, 6-8 drops was the right amount for the 1L Sodastream bottles.

Based on my tastings, I would recommend the following flavors for Sodastream usage:

• Best: Cherry, Fruit Punch, Pineapple, Pomegranate
• Good: Watermelon, Peach
• Okay: Coconut, Tropical Punch

I would not recommend:

• Not good: Lemonade, Orange Cream, Strawberry Kiwi
• Truly bad: Green Apple, Pear

Also, be aware that any of the flavors that are red or pink will stain countertops or whatever else they touch, to some degree. I suspect that, over time, they might stain the sodastream bottles, though the dilution is high so maybe not.

Detailed ratings and notes:

Table listing flavors, color, rating, and notes