According to Spanish legislation, some of the quality parameters of canned mushroom (colour, weight and grade) have been
studied. Dierent times of blanching treatment and two brines, with and without ascorbic acid, were used. Blanching had an
important eect on the ®nal state of mushrooms, decreasing the losses of weight and grade and improving the colour, which was
clear and pleasant. A positive eect of ascorbic acid was observed. The presence of this acid in the brine improves colour stability
and acceptance. It inhibited the browning process. The pH of brine plus mushroom is independent of brine composition (with or
without ascorbic acid). Longer times of blanching had no signi®cant eects on mushroom quality parameters. # 1999 Elsevier
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