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clever mum Smart Parenting UK
✓ Best first sippy cup Verified: 2026-07-11

Tum Tum Tippy Up Free-Flow Sippy Cup

Brand: Tum

3.45 / 5

Official Verdict & Summary

A valve-free, spill-resistant sippy cup that’s a repeat Amazon bestseller for the weaning-to-toddler stage — simpler to clean than valved cups because there are fewer parts to lose.

Verified Pros

  • +No valve — nothing to lose and easier to clean
  • +BPA-free and dishwasher safe
  • +Genuinely spill-resistant when upright

Verified Cons

  • –Free-flow design means it will leak if knocked over
  • –Smaller capacity than some toddler cups

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