Isn't biscuits juju that his oven can actually hold an infinite amount of space as shown when cyborg spades slick puts everyone in the oven (I don't know the page but it did happen in the comic)

Yeah his oven is very Tardis-y in that it’s bigger on the inside. But also like a tardis it let’s him travel through time, only into the future at a rate of 1 second per second