Doritos Heat variety are one of those that contain small amounts of trace alcohol
Some crisp types use minute amounts of alcohol as a chemical agent to extract certain flavours.
The report in Asian newspaper Eastern Eye, highlights concerns raised by shopkeeper Besharat Rehman, who owns a halal supermarket in Bradford, West Yorkshire.
Mr. Rehman told the paper: "A customer informed us that Sensations Thai Sweet Chilli and Doritos Chilli Heat Wave are not on Walkers' alcohol-free list. Our suppliers were unaware of this.
"Even if it is a trace amount of alcohol, Walkers should make it clear on the packaging so that the customer can make an informed choice.
"I feel frustrated and angry. I have let my customers down simply because such a big company like Walkers is not sensitive to Muslim needs.
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