A-listers such as Emma Watson, Rosie Huntington-Whiteley, Cara Delevingne and Kate Moss are all part of Burberry family and front campaigns for the high-end brand.
Lawmaker Tim Farron, environment spokesman for the opposition Liberal Democrat party, said: "It is outrageous that Burberry think setting fire to their unsold stock is an acceptable solution".
Burberry burnt six per cent more products in 2017 than the company disposed of in the previous financial year.
Insiders suggest that luxury brands destroy unwanted products to protect their intellectual property and brand values and as it is claimed, do not want their products to be sold at discount rates elsewhere, or sold to "wrong" type of people, thus devaluing the brand.
All told, more than £90 million - roughly $116 million - worth of product has reportedly been destroyed over five years.
Burberry is a coveted British label, famous for their classic trench coats and use of the novacheck print.
Only Temperley replied, saying its unsold clothes were either donated to charity or sold at a discount outlet. Last year, an investigation found the Swedish high street fashion retailer H&M had incinerated 60 tons of clothes since 2013.
Aside from any business rationale, the ethical implications of destroying valuable merchandise are something a brand like Burberry is rightly being forced to address.
Richemont, the owner of Cartier and Montblanc, destroyed more than £400 million of watches over a two-year period after an excess in goods in the Asian markets.
Tim Jackson, head of the British School of Fashion at the London campus of Glasgow Caledonian University, said luxury fashion firms such as Burberry faced a paradox.
Burberry's lines are traditionally mega expensive, with its cheapest rucksack retailing for $1,200 in Asia.
"Burberry has careful processes in place to minimize the amount of excess stock we produce", the company said. "On the occasions when the disposal of products is necessary, we do so in a responsible manner and we continue to seek ways to reduce and revalue our waste".
"One example is our partnership with the Ellen MacArthur Foundation's Make Fashion Circular Initiative, where we join other leading organizations to work towards a circular fashion economy".