New to soda making and just tried to make ginger ale with yeast the other day. After about 24 hours the plastic 2L bottle felt pretty firm so I stuck it in the fridge. Then later that day I tried it - upon opening the bottle there was quite a bit of gas escaping (to the point that it overflowed a bit) but when I drank it it tasted quite flat. I see little bubbles clinging to the side of my glass, but it just doesn't taste fizzy like store-bought soda. Did I not let it ferment enough? Should I take the bottle out of the fridge and try to let it ferment some more? Or is this what I should expect from homemade soda?