How much do Tommee Tippee nappy bin refills cost a year?

What does a Twist & Click cassette actually cost?

The lock-in is the film, not the plastic shell. Tommee Tippee's Twist & Click and older Sangenic TEC bins take the same branded cassettes. Third-party film exists, but the maker's own pages tell you to use original cassettes if you want the wrap mechanism to work as designed. Prices move with multipacks and supermarket deals, so treat the figures below as a checked snapshot, not a fixed annual rate.

Which? parent surveys in 2015–16 listed nappy disposal bins among the least useful baby buys. The bin is a convenience product. It is not on any NHS kit list.

How do I work out a year of film without inventing a rate?

Do not use one made-up 'annual cost' from a blog. Build a range from the maker's own capacity line and the pack price you actually pay.

1. 1
   Write down the pack price Use the six-pack or twelve-pack you would actually buy, including delivery if the order is under the free-delivery threshold.
2. 2
   Convert to a price per cassette Divide the pack total by the number of cassettes. On 10 September 2026 a £34.99 six-pack was about £5.83 each; a £36.49 six-pack was about £6.08 each.
3. 3
   Apply the maker's size-1 month claim If one cassette really lasts a month on size 1, twelve cassettes is two six-packs: about £70–£73 of film in year one, plus the ~£30 bin.
4. 4
   Stress-test with a heavier month A newborn can go through 8–12 changes a day. If a cassette holds about 100 size-1 nappies, that is closer to two or three cassettes in an early month. Larger later nappies also eat film faster even when you change less often.
5. 5
   Write a low and a high, not one number A light year that matches the size-1 month claim sits near £70 of film. A heavier year of 18–24 cassettes sits nearer £100–£140. Recalculate when your pack price changes.

That range is why a 'nappy bin costs £X a year' headline is usually marketing. The variable is film length versus nappy size, not the colour of the lid.

What does a kitchen bin and nappy sacks cost instead?

The skip alternative in UK parent threads and Which?-era skip lists is a lidded kitchen or bathroom bin you already own, emptied to the outside bin often, with or without a cheap nappy sack. Tesco's own 300-pack of nappy bags was £1.00 on 10 September 2026; the Fred & Flo 150-pack was £0.85.

RoSPA's nappy-sack advice is about storage, not smell: keep unused sacks out of reach, and never leave loose sacks in or near a cot, pram or changing area. Thin film can stick to a baby's face. Store the roll in a closed cupboard or high drawer, and take one sack out at a time.

When might a dedicated bin still earn its keep?

A cassette bin is a smell-and-convenience buy. Households that keep one usually have a small flat, a shared hallway bin, or night changes they do not want to walk outside. That is a preference, not a rule.

• Odour in a small room. Individual wrap is the product's whole pitch. If a lidded kitchen bin emptied twice a day is already acceptable, the film bill is optional.
• Who empties the outside bin. If nobody can reach an outdoor bin after dark, a sealed cassette can reduce how often the bag leaves the room. Count that against £70–£140 of film.
• Cloth nappies. A dry pail or ordinary lidded bucket is a different job. Cassette film is built for disposables.
• Gifts. A bin arriving in a hamper still needs a refill budget. The gift is the shell; the spend is the film.

Why do Which? lists keep calling disposal bins least useful?

Which? asked parents of under-fives which extras they barely used. Nappy disposal bins appeared on the 2015 and 2016 'least useful' lists, alongside nappy stackers and door bouncers. Press write-ups at the time put a specialist bin at roughly £10–£150 before liners. The 2016 Scottish Sun piece on that survey also noted that many parents felt a disposable nappy bag did the same odour job.

Those surveys are parent opinion, not a product-safety ruling. They are useful because they match the cost shape: the shell looks cheap next to a cot, and the film is the line that repeats every month.

In short, what should I budget?

In shortBudget the bin as ~£30 once, then budget film as a range: about £70 if you match the size-1 month claim, or about £100–£140 if early months and bigger nappies burn cassettes faster. Re-price the six-pack in your usual shop before you treat any blog's 'annual cost' as a fact. If a lidded kitchen bin plus a £1 sack pack already handles smell, the cassette system is a convenience extra, not a year-one essential.