Quality

We developed the UK's first sterile single-use citric acid sachets, and they are still the only ones manufactured in the UK to the exacting pharmaceutical industry Good Manufacturing Practice (GMP) standard.

Below we explain what GMP means, and how it enables us to offer a unique guarantee of product safety.

Quality Control

The citric acid BP in Exchange sachets is manufactured to pharmaceutical grade and packed by a MHRA licensed manufacturer under the strict hygiene and quality control procedures known as 'Good Manufacturing Practice'.

The citric acid is carefully measured into sachets that are made up of 4 bonded layers to keep them airtight, watertight and free from contamination. There is a layer of paper on the outside that can be printed on. Beneath that is a layer of waterproof plastic over a layer of aluminium foil. The final layer that lines the sachet is of waterproof plastic.

As the sachets come off the production line, every sachet is checked by an electronitc fill checking device, to make sure that they contain powder (the filler nozzles are very fine and they can become blocked). Every hour, several sheets of 10 are tested for weight, print clarity, and water tightness (this is tested by placing the sachets in a water chamber with a vacuum above that shows any leaks by pulling a stream of air bubbles from the sachet).

We employ an independent 'Qualified Person' to oversee the packing processand to approve each batch. The sachets are carefully logged, certifcated and most importantly, are fully traceable through a system of daily batch numbering.

The citric acid is guaranteed chemically stable for 3 years by the manufacturer, for added safety we have stipulated a 'use-by' date of 2 years from the date of packing.

Each sachet is tracked from manufacture, through sterilisation and out to the customer so that we can, if necessary, conduct a highly selective recall.

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Problems?

Because we have put so many quality control safeguards in place, problems with our products are unlikely. But, if you do experience any problems with our sachets, please contact us straightaway so that we can put in place our procedures to:

• recall and replace your faulty sachets (they will be sent back to our QP so that they can be examined. We will let you know the results of those tests); and depending on the nature of the problem
• warn other customers of potential problems, and if necessary recall and replace affected stock.