MALENY Dairies has voluntarily recalled several of its prime milk products after in-house testing discovered possible E.coli contamination.
Company owner Ross Hopper said the problem emerged during routine testing and was confirmed by an independent laboratory.
"We've had a positive result for a high bacterial count, so we've gone and done a recall - we've just done it ourselves," Mr Hopper said.
"We had a bad seal that was leaking, between the pasteuriser and the bottle filler.
"That's what's caused the problem but we've fixed it," Mr Hopper said.
"It's a bit of a bummer that it happened, but production is back to normal."
As test results take 24 hours, Mr Hopper said some possibly contaminated milk had already been despatched and was being recalled.
The recall involves three products: gold-top Farmers Choice pasteurised-only milk, in one, two and three-litre bottles, with a use-by date of February 13; the Maleny Dairies red-top low fat milk in one, two and three-litre bottles, with a use-by date of February 12; and also the blue-top full cream milk in 300ml, 500ml, one, two and three-litre bottles, with a use-by date of February 13.
Mr Hopper thanked the company's loyal customers for their support and understanding.
"Maleny Dairies is not into sweeping anything under the carpet.
"The tests showed the positive results and we did a recall to make sure we're not sending out any substandard stock.
"If it wasn't for customers being understanding and giving us a decent go, we wouldn't be where we are today, so we're really thankful for that," Mr Hopper said.
- Farmers Choice pasteurised only milk (gold top): 1 litre, 2 litre and 3 litre bottles marked "Use by 13 Feb".
- Maleny Dairies low fat milk (red top) - 1 litre, 2 litre and 3 litre bottles marked "Use by 12 Feb".
- Maleny Dairies full cream milk (blue top) - 300mL, 500mL, 1 litre, 2 litre and 3 litre bottles marked "Use by 13 Feb".