My Multliner smells odd, why is this and what should I do?

It seems that a strange odor sometimes occurs when yeast adheres to the lubricating oil, which is applied to the cap to make opening and closing Multiliners smoother. We are very sorry for this inconvenience. You can remove the odor by wiping the part of the liner which touches the inside of the cap with a tissue soaked in alcohol. Products shipped after 2017 have been improved, so the issue is now under control, but if it happens with a newly purchased product, we will replace it.