Part of the problem about the flavour of fruit and vegetables bought from supermarkets is the variety on offer. Tomatoes, in particular, are chosen because they are robust enough to withstand the wear and tear of transportation and storage - some of them can probably be bounced on the floor without splitting. The varieties are also selected because they produce attractive looking fruit - evenly round, red and uniform in size. Flavour is the last consideration, if it's considered at all. These sorts of criteria are applied across the board. As a result, several hundred varieties of English apples are no longer produced because they do not conform to the supermarkets' requirements, although they may be exactly what the customer wants.