CIVIC LANE Early September traditionally marks a busy preserving season as cooks try to capture the last flavours of summer fruit and vegetables. The Guardian's latest food coverage highlights jam-making and preserving as ways of extending seasonal produce into winter. These techniques were once everyday household skills but became less common with cheap supermarkets and year-round food availability. Interest in homemade, local and lower-waste food has helped bring some of them back. This ranking question asks which traditional kitchen techniques people believe deserve the strongest revival.