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A popular Welsh dairy company has released details about an "isolated incident" where a batch of milk has been found to "have a taint to it".

Cymru Dairy published a statement on their website, apologising to customers and offering a full refund to those who have been affected.

The Cardiff-based independent family business, which launched more than 10 years ago, say the "taint" is an isolated incident and has been traced to well water from a single farm.

One customer highlights the "funny taste" of the milk on social media.

Graham Ball, the commercial director of Cymru Dairy, said they were only made aware of the issue a number of days after the milk had been supplied to customers because "the taint appears to develop over time".

He added that there is no food safety risk to customers from consuming this milk.

The company are not recalling the products but are offering all customers who have been affected a full refund.

Which batch of milk is tainted?

According to the Cymru Dairy website, the batches of milk which have a taint to it, include:

Cymru Dairy 2 litre Whole Milk (Use by: 08.01.19 and 09.01.19)

Cymru Dairy 2 litre Semi Skimmed Milk (Use by: 09.01.19 and 11.01.19)

(Image: Richard Williams/WalesOnline)

What is the nature of the taint?

Cymru Dairy have provided no further detail as to the exact nature of the taint. However, the company has said that the taint has been traced to well water from a single farm.

They say the taint is an isolated incident and only affects the products and use by codes detailed above, and no other products or codes are implicated.

What does the word 'taint' mean? According to the Oxford Dictionary, the word 'taint' translates to: "a trace of a bad or undesirable substance or quality" or "something with a contaminating influence or effect."

The full statement from Cymru Dairy

The full statement reads: "We are aware that a small proportion of our Cymru Dairy milk has a taint to it. This is an isolated incident that relates only to the products and use by codes detailed above – no other products or codes are implicated.

"Our milk processor has assured us there is no food safety risk to customers from consuming this milk. The taint appears to develop over time, hence we have only been made aware of this issue a number of days after we had supplied it to our customers.

"The source of the taint has since been traced to well water from a single farm. Our milk processor immediately stopped taking milk from this farm and supply will only be reinstated when they are confident the issue is fully resolved.

"The milk has been fully tested by our processor and the situation has also been discussed with local Environmental Health Officers (EHO). It was decided that a product recall was not appropriate, as there was no food safety risk and that the complaint only related to a small proportion of the milk supplied.

"Our milk processor has processed our milk for over 10 years and we have an excellent track record of supplying quality product. The processor is externally accredited, regularly audited and achieved the highest rating at their latest audit.

"This particular batch of milk passed all of the testing and normal production procedures from raw milk reception, through to post production testing. Cymru Dairy operate an externally accredited distribution site and when visited today, the local EHO was fully satisfied with the manner in which we are dealing with this matter.

"Finally, I would like to apologise to our loyal customers and consumers for this situation and any inconvenience it may have caused. We will obviously ensure anyone affected will receive a full refund."

(Image: Richard Williams/WalesOnline)

You can find the full Cymru Dairy statement here.

When contacted by WalesOnline for further information, Cymru Dairy declined to comment.