Nestivo

b.box Sippy Cup 240 mL (Sage)

Cups

Nestivo’s take

Useful for straw drinking at different angles, with replaceable parts. Cleaning is more involved than an open cup. Flow feedback is mixed and the valve has changed, so test your child’s current cup.

Compare b.box Sippy Cup 240 mL (Sage)

Age & readiness

6 months and over

b.box describes its weighted-straw Sippy Cup from 6 months; drinking skills and assisted use still matter.

Product age guidance · Checked 2026-10-30

Scores at a glance

What these scores mean and how we assess them

Low toxins
60 / 100
Performance
69 / 100
Sustainability
45 / 100
Availability
60 / 100
Price / value
70 / 100

Why parents choose it

What to think twice about

Evidence behind the scores

Low toxins — 60 / 100

Named materials make the construction easier to assess, but they do not establish that this product is safer than alternatives. Polypropylene, silicone and steel weight; brand states BPA free. Public model-specific migration-test reports were not confirmed.

Food-contact material disclosure

Polypropylene, silicone and steel weight; brand states BPA free.

Score: 9 / 10
What earns 10/10?*

Complete material disclosure by component.

BPA / bisphenol status

BPA-free claim published for this model.

Score: 7 / 10
What earns 10/10?*

Independently verified or complete material evidence.

Phthalate status

A model-specific phthalate declaration was not confirmed.

Score: 3 / 10
What earns 10/10?*

Independently verified absence.

PFAS / fluorinated coating status

A model-specific PFAS declaration or chemical report was not confirmed.

Score: 3 / 10
What earns 10/10?*

Product-level test or explicit supported absence.

Food-contact migration and safety testing

A current, model-specific food-contact migration report was not confirmed.

Score: 3 / 10
What earns 10/10?*

Accessible recognised food-contact testing.

Hygienic design and cleanability

Dishwasher; disassemble straw and valve as instructed.

Score: 6 / 10
What earns 10/10?*

Easy to fully clean with few traps.

Ingredient/material disclosure completeness

Polypropylene, silicone and steel weight; brand states BPA free.

Score: 9 / 10
What earns 10/10?*

Full formulation/component list with functions or composition.

Performance — 69 / 100

The weighted straw supports drinking at different angles, with handles and a flip cap for everyday handling. Parent reports raise mixed experiences with drinking flow and cleaning. The straw and valve need dismantling, making cleanup more involved than for an open cup.

Confidence: Low. Older reviews describe different valves, leaving less reliable evidence about the current cup’s drinking flow.

Suitable design and use instructions

Use with supervision and follow the exact model instructions; independent safety testing was not retrieved.

Score: 7 / 10
What earns 10/10?*

Strong applicable safety evidence and design.

Drinking design and spill control

Weighted-straw cup with handles and flip cap. Valve and straw need careful cleaning.

Score: 7 / 10
What earns 10/10?*

Excellent function and consistent reviews.

Ease of cleaning

Dishwasher; disassemble straw and valve as instructed.

Score: 6 / 10
What earns 10/10?*

Simple, dishwasher/wipe-clean and few crevices.

Durability and repeated-use performance

Designed for repeated use; long-term independent comparisons limited.

Score: 7 / 10
What earns 10/10?*

Robust long-term use.

Everyday handling

Weighted straw works at different angles. Parent reports are mixed on flow and cleaning. The current Sage listing describes a redesigned valve, so older reviews cannot be assumed to cover it.

Score: 8 / 10
What earns 10/10?*

Highly practical and intuitive.

Portability

Check lid and drinking design before carrying. Do not assume an open or training cup is leakproof in a bag.

Score: 7 / 10
What earns 10/10?*

A 10/10 benchmark has not yet been defined for this criterion. The highest defined benchmark is 9/10: compact with documented case/fold or low carrying weight.

Sustainability — 45 / 100

The practical sustainability benefit depends on repeated use and care, rather than buying a reusable product and replacing it quickly. Designed for repeated use. Manufacturing energy and whole-product lifecycle impacts remain unconfirmed.

Renewable / plant-based material share

Renewable material share is not established for this model.

Score: 2 / 10
What earns 10/10?*

High quantified renewable share.

Waste and virgin-plastic reduction

Reusable item; no quantified whole-product waste comparison confirmed.

Score: 6 / 10
What earns 10/10?*

Reusable/high displacement of single-use waste.

Durability and reuse lifespan

Repeated-use design; independent lifespan testing not confirmed.

Score: 7 / 10
What earns 10/10?*

Long size range, robust materials, warranty/repair data and reuse evidence.

End-of-life evidence and disposal honesty

A practical Australian take-back or confirmed local recycling route was not found.

Score: 3 / 10
What earns 10/10?*

Precise, evidence-backed disposal limitations and pathways.

Manufacturing powered by renewable energy

Model-specific manufacturing-energy evidence was not confirmed.

Score: 3 / 10
What earns 10/10?*

Independently reported 100% renewable electricity at relevant manufacturing sites.

Manufacturing impact / lifecycle evidence

A whole-product lifecycle comparison was not confirmed.

Score: 3 / 10
What earns 10/10?*

Public product LCA or independently assured impact metrics.

Packaging sustainability

Packaging composition and recycled content were not confirmed.

Score: 3 / 10
What earns 10/10?*

Verified compostable/reusable or high-recycled-content recyclable packaging.

Sourcing transparency

Material origins and supplier traceability are not detailed in the reviewed information.

Score: 3 / 10
What earns 10/10?*

Full product-material provenance and supplier/chain identifiers are documented across all relevant inputs. None of this catalogue is assigned 10 on current records.

Availability — 60 / 100

Direct Australian ordering through b.box provides a clear way to buy this exact product. The moderate availability score reflects the documented direct purchase option rather than confirmed stock across a broad store network, making it less certain for an urgent local purchase.

Retail availability and purchase convenience

Australian listing located; check colour and delivery availability.

Score: 6 / 10
What earns 10/10?*

Broad major-retailer availability.

Price / value — 70 / 100

The weighted-straw format can justify paying more than for a plain cup if it suits your child’s drinking. The extra cleaning and replacement-straw needs belong in the value decision too. A familiar brand alone does not establish better value for every family. AUD $16.95 for the specified item.

Typical unit / upfront price

AUD $16.95 for the specified item.

Score: 7 / 10
What earns 10/10?*

Among lowest relevant current prices.

Value for performance / lifetime cost

Specified configuration and repeated-use features considered alongside upfront cost.

Score: 7 / 10
What earns 10/10?*

Excellent performance-to-price or strong lifetime economics.

* Benchmarks describe the scoring rubric, not a guarantee of safety or suitability. Read them alongside the product’s findings and limitations.

Sources & evidence confidence

Exact model reviewed; see evidence limitations.

Product evidence last reviewed: 2026-10-15

General plastics research

These studies explain the wider research behind materials assessment. They do not test this product or establish its safety, chemical content or exposure.