What's the best way to wash a Nalgene water bottle that has a 1'; opening?

I use a baby bottle brush on items with that small of neck openings. If there is some sort of build up inside that refuses to come off I use an old trick I learned from collecting old coke bottles, just break a Polident ,denture cleaner,(or equal generic) tablet up so parts will fit through opening, might take two or three tablets to match water level of container, just follow directions on box.





This combined with baby brush has cleaned many a jar and bottle for me, hope it does same for you.What's the best way to wash a Nalgene water bottle that has a 1'; opening?
soap and water and use a baby bottle brush and rinse well...........What's the best way to wash a Nalgene water bottle that has a 1'; opening?
Wash? You're supposed to wash them?
put about one table spoon oxi clean in the bottle fill with very hot water let sit overnight rinse well next day. will look like brand new
i just use really hot water and soap and shake it around violently! i only ever put water in it though, not juice, or beer, or anything else exciting.





had a friend put beer in one and it stank for a while, so she put peppermint schnapps in to get rid of the beer stank... it worked!





I've soaked it in vinegar and hot water, too, if it has that ';sat in the back of the car in the sunshine for a week'; flavour!





a long, bottle brush would work best if you have mold/crud in it that won't quit!





good luck! :)