Using same silicone toddler bib for both meat and milk

  1. Is it preferable for one bib to be fpr meat (not dairy), and another one to be for dairy (not meat)?
  2. If #1 is yes, after the fact, can we now convert a silicone bib that was alternating back and forth to meat-only or dairy-only (since bib is not used over a fire)?

Not needed