Is it in bad form to simply refill it when low? Or is a complete empty / wash cycle needed?
I really like the 500ml VG bottles i received with my NicRiver starter kit. Super clear plastic with a nice twist top. Makes measuring either a lot, or a little into 30ml bottles very easy/precise. Is it OK to just “Fill 'er Up” from my larger supply bottle? Or do I need to lather, rinse, repeat first?