"The cost of finished goods physically destroyed in the year was £28.6 million... including £10.4 million of destruction for beauty inventory", the company's annual report said.
The firm says that energy generated from the fire was captured to make it environmentally friendly.
Only selected limited edition pieces will be available for immediate purchase from Tisci's debut London Fashion Week show in September, with the full collection being released in February. Burberry - which is not the only luxury label to ditch leftovers - defended its actions, telling the Times that it donated what it could for recycling and targeted only trademarked products.More news: Barnier: UK's Brexit plans useful, but questions remain
A spokesperson for Burberry said: "Burberry has a careful processes in place to minimise the amount of excess stock we produce".
The news comes as insiders claim luxury brands destroy unsold products to prevent them from being sold at discount prices on the gray market to the "wrong people", the paper reported. The company also recently joined the Ellen MacArthur Foundation's Make Fashion Circular initiative to reduce fashion waste.
It takes the total value of goods it has destroyed over the past five years to more than £90m.
Ms Tually said overproduction results in massive waste in the global fashion industry.More news: Anderson appreciates phone call from Ramaphosa
However, it is not only Burberry who engage in the act.
The company sent surplus stock to incinerators in what a waste expert said was an apparent breach of United Kingdom regulations aimed at minimising waste and maximising recycling. "Where us the consumer could push back on them and say whether it's luxury or high street, and say "no, I don't need something new this week or this month", she added.
The fashion label which has worked with some of the world's most renowned models and celebrities, including Emma Watson, Rosie Huntington Whiteley and Cara Delevingne among others, claimed that the practice of destroying excess stock was common across the retail industry.
The brands want to preserve the exclusivity of their goods and prevent them from falling into the hands of illegal counterfeiters.More news: Sanitary napkins to be exempt from GST
Among the products destroyed were cosmetics from the company's beauty line, which was sold to Coty.