More than 100 bottles of dangerous counterfeit vodka were seized by trading standards officers in Southall last week.
Officials confiscated more than 100 bottles of fake Imperial Vodka on Wednesday (10) across Southall, as part of a borough-wide operation tackling the sale of phony branded alcohol from shops.
They swooped on one shop in Norwood Green on Monday (September 15), where nine bottles of the booze were seized.
Imperial Vodka is the brand name used exclusively by Spar supermarket but the fake variety, which is not being sold through the chain's outlets, contains potentially harmful levels of methanol.
The levels recorded could have serious health effects, including blindness, if consumed in large quantities.
Officers have also found counterfeit Glen's Vodka in various quantities, which are also thought to contain higher levels of methanol than normally found in the authentic brand. Samples have now been sent off for testing.
Safer communities leader Vlod Barchuk said: "It is very concerning that traders are putting people's health at risk by selling fake alcoholic products.
"We will be continuing with the investigation in a bid to rid the borough of these dangerous products.
"I would urge anyone who has bought these products, or is worried about their authenticity, to contact the CouncilÕs trading standards department via Consumer Direct immediately."
A spokesperson for Spar said: "Spar UK Limited can confirm it has been made aware of several incidents involving bottles of counterfeit Spar brand Imperial Vodka found in non- Spar stores.
"Tests conducted on the counterfeit vodka have shown it contains high levels of methanol, which could be damaging if sufficient quantities are drunk.
"Spar can confirm it has taken the appropriate steps to inform authorities at both the FSA and Trading Standards, and the counterfeit vodka has not affected legitimate supply routes to stores."
For more information, or to report a purchase, contact Consumer Direct on 08454 040506.