Rsp: £2.09 for 1-litre bottle Copella is still one of Tropicana's star brands and one it intends to revitalise regularly. The company says although apple and elderflower is still its bestseller, cranberry and apple is its fastest growing variant. Launched in April, sales have steadily grown and peaked in December at £124,219. Average four-weekly sales since launch: £87,751. {{FOCUS SPECIALS }}