I sanitize my water bottles in the sun. After washing them I put them on a south-facing windowsill and let the UV light kill every last living microbe that might be lurking in the crannies. (it’s always the crannies that get you, the nooks are usually fine)
I sanitize my water bottles in the sun. After washing them I put them on a south-facing windowsill and let the UV light kill every last living microbe that might be lurking in the crannies. (it’s always the crannies that get you, the nooks are usually fine)