Hmm, that's a shame. They must have had a good reason to do that. 30ml seemed like a good size of a flavor to get for something I'll make semi-often, but not often enough that I have to worry about whether a 4oz bottle would go bad before I used it all. I'm probably overthinking this a bit.
I'm kind of thinking the same. I feel like if I got 4oz bottles they would go bad before I got to use it all.
But I haven't actually started to DIY yet so I'm not too sure lol. Getting mentally prepared to blow 120 bucks on equipment and flavors once my tax refund hits my bank account lol.