Shoshana Brenton
Shoshana Brenton voted up Cookie Roma's answer

This is all I can tell you.  I have a cup I use literally constantly.  I too only wash it once a day. I've been doing this for many years and have have absolutely no problem. 

Shoshana Brenton
Shoshana Brenton voted up Smiley Crankenhoof's answer

Control freaks insist you do things their way and they will come up with reasons for it. If someone is telling you they want you to wash your cup every time you use it and that you will become ill if you don't, they seem to have control issues.

Evaluate the situation. If it's not … Read more

Shoshana Brenton
Shoshana Brenton voted up Anonymous' answer

It's your cup and your life . Don't they have anything better to worry about? I mean really.... It's a cup ...a CUP.  You seem very capable of knowing when it needs cleaning.

I have lived  many places all over and many drink  out of all sorts of strange things . I wish all … Read more

Shoshana Brenton
Shoshana Brenton voted up Smiley Crankenhoof's answer

Control freaks insist you do things their way and they will come up with reasons for it. If someone is telling you they want you to wash your cup every time you use it and that you will become ill if you don't, they seem to have control issues.

Evaluate the situation. If it's not … Read more