question about 2nd fermentation of KT

[Guest guest]

I decanted my 10 day KT today, and decided to try the 2nd fermentation

technique. I put the KT in a plastic liter coke bottle, added a sliver

of ginger and a few bits of lemon peel (that I could get off an

already squeezed lemon, lol).

Next I gently squeezed the bottle to eliminate any air, and put the

lid on tight. In a few minutes, there was an air pocket at the top of

the bottle, so I opened it, squeezed again, and capped it. And then in

a few minutes, there was the same air pocket!

Is this normal? That was about 6 hours ago, and there is another air

pocket (about 1/2 " headroom), and the bottle's quite firm to the

squeeze. I'm thinking I might need to fridge it before bed tonight?

Thanks for your help,

a