Those carb caps look interesting. How do they lock on to the plastic bottle? Would still mean i would need a fridge in the garage when filling the plastic bottles though, as it would just turn into foam at room temps? Whereas Im thinking if i had a mini keg and matched the pressure (almost)...

So.... I have a 20l corny keg which my brews go into to be force carbed. The missis wont let me have another fridge in the house, which means if i were to get one in the garage i would need to leg it all the way outside to grab a pour. Ive tried using an unpresssurised growler to dispense into...