There is no honest worldwide percentage for the savings or carbon reduction from a soda maker. Prices, bottle sizes, transport distances, refill systems and recycling rates vary by market. The method below lets a household or buyer calculate the result with local data.

One Miracle Soda CO2 cylinder can make up to approximately 60 litres under suitable conditions. Actual yield varies with carbonation level, water temperature and operating practice. Sixty litres equals 120 containers of 500 ml only when bottled water would otherwise be bought in that exact size.

Calculate cost with your own prices

Use current retail and refill quotations from the target market. Do not treat the examples on a supplier page as a guaranteed saving.

InputHow to calculate it
Annual demanddaily litres x 365
Annual bottled costannual demand x local bottled price per litre
First-year homemade costmachine price + required cylinder refills + water/filter cost
Later-year homemade costcylinder refills + water/filter cost + maintenance
Break-even volumemachine price / (bottled cost per litre - homemade operating cost per litre)

Example of volume only: 2 litres per day equals 730 litres per year. If the alternative is 500 ml single-use bottles, that equals 1,460 containers. This is a packaging count, not a guaranteed financial or carbon result.

Packaging and lifecycle impact

A reusable bottle can avoid repeated single-use packaging when it genuinely replaces bottled purchases and is used for its intended lifetime. UNEP life-cycle guidance generally favours reuse, while also stressing that outcomes depend on production, transport, washing, refill logistics and end-of-life treatment. Without a product-specific lifecycle assessment, a fixed claim such as 96% lower emissions is not supportable. UNEP life-cycle guidance

Micro- and nanoplastics: what is known

A 2024 study examined three bottled-water brands and estimated about 240,000 micro- and nanoplastic particles per litre on average. That result should not be generalized to every brand, tap water or every reusable bottle. WHO reviews identify substantial uncertainty about human health effects; detecting particles is not, by itself, proof of harm. Qian et al., 2024; WHO review

B2B buyers should build a landed-cost model

Importers, distributors, hotels and restaurants should include equipment, cylinders, freight, duties, labour, cleaning, storage, wastage and expected service volume. Use supplier quotations and customer selling prices from the target market. Any payback period should be presented as a scenario, not a promise.

Sources and calculation limits: Prices and environmental outcomes change by market and use pattern. This article supplies a calculation method, not a financial return or environmental-performance guarantee. Reviewed 12 August 2026.

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