24 May 2026 SA’s bottled water’s surprising water footprint
Bottled water is often vilified as wasting water. However, other beverages and foods are far bigger users of water….
If you’re buying top‑quality South African bottled water (especially SANBWA‑certified brands), the water footprint is about 1.6 litres per litre — among the most efficient globally….
Here’s the breakdown based on the most authoritative, South Africa‑specific and global data available:
✅ SA’s benchmark (SANBWA‑certified premium brands)
South Africa’s top bottled‑water producers — those certified by the SANBWA — operate under one of the strictest water‑use standards globally.
Water footprint: 1.6-litres of water per 1-litre bottled
This includes all water used for:
- source abstraction
- filtration
- bottle rinsing
- cleaning
- bottling
- quality control
This 1.6:1 ratio is a hard ceiling, not a target, and is significantly lower than many other beverage categories.
🌍 Global bottled water footprint
Outside SANBWA‑level operations, international life‑cycle analyses show a typical global range: 2.5–4 litres of water per litre bottled
This includes:
- water used in bottle manufacturing
- processing losses
- cleaning and sterilisation
- inefficiencies in older plants
This broader range reflects the higher environmental cost of bottled water compared with municipal tap water systems.
🧭 Why premium SA bottled water performs better
SANBWA‑certified producers achieve the lower 1.6:1 ratio because they use:
- high‑precision filling systems that reduce overfill waste
- closed‑loop rinse‑water recycling
- UV/ozone sterilisation instead of water‑heavy methods
- real‑time leak detection and maintenance systems
- annual independent audits to verify compliance
Footprint of other food-drink products
On average, one apple (weighing 150g) takes 125 litres of water to produce. Taking it a step further to apple juice, and one 200ml glass requires around 230 litres of water.
It takes 168 litres of water to produce one pint of beer. And around 18,900 litres of water are needed to produce 1kg of coffee beans. To put that into perspective, a standard cup of coffee (125ml) has a water footprint of 130 litres.
Somewhere around 30 litres of water are required for tea leaves, 10 litres for a small dash of milk and a further 6 litres for each teaspoon of sugar. This means that a simple cup of tea with milk and two sugars could actually require 52 litres of water – enough to fill my kettle more than 30 times.
The best global estimate of the total water needed (green + blue + grey) to produce a litre of milk is about 1 020 litres. Total agricultural water use accounts for about 70% of total water withdrawals globally.
It takes 960 litres of water to make a single litre of wine, or 720 litres for a 750 ml bottle. It takes almost three litres of water to make one litre of carbonated and sweetened colddrink. And, almond milk requires 384 litres of water per litre.
Makes you think, doesn’t it?
Source: waterhq.world, SANBWA