tokens: Huang Wan - fu , whose family farms two hectares of orchard with more than 700 wax apple trees , and who has over 30 years ' experience as a fruit grower , says that while other parts of Pingtung County also grow wax apples , " Linpien stands out for its growing techniques , developed through trial and error by the growers themselves , and for vernalization rates of up to 90 % . "