Printer ink can cost up to seven times the price of Dom Perignon champagne, according to Which?. The consumer champion has described the material as "one the most expensive liquids on Earth" and called for action.
According to Which?, a set of replacement ink cartridges for an Epson Workforce Pro WF3820DWF printer from the company's online store cost £111.99, which works out at £1.78 per ml. By contrast, Which? said, a bottle of Dom Perignon champagne bought from Ocado costs £180, or 24p per litre.
Despite this, nearly half of people surveyed by Which? (49%) said they continued to use branded ink rather than cheaper third-party alternatives. Using third-party ink when replacing cartridge three times a year for the same Epson printer would cost less than £140, Which? said, as opposed to over £330.