The School Food Trust is calling for a January sale on school lunches - as new research highlights the importance of price when it comes to encouraging more children to try a healthy school meal.The Trust - the organisation charged with transforming school food - is urging more local authorities and schools to join the high street in using special offers to tempt customers, at a time of year when cash is particularly tight for parents.It comes with the publication of new research showing that any rise in price for school meals is likely to see a fall in the number of pupils buying them - with demand for school food more sensitive to price changes than other food products. Read more: http://www.schoolfoodtrust.org.uk/news-events/news/what-price-a-healthy-school-lunch