MU Extension MU Extension       University of Missouri    ●    Columbia    ●    Kansas City       Rolla     ●    St. Louis - Food Safety


Quick Answers



I sometimes find hard white deposits in my home-canned pureed tomato products. Is this a sign of spoilage?

These deposits, which resemble fish scales, are commonly found in home-canned mashed or pureed tomato products. If the products were canned by a safe method and show no other signs of spoilage, they are safe to eat.   

Barbara Willenberg, Nutritional Sciences, University of Missouri-Columbia





Last update: Tuesday, May 05, 2009



University of Missouri logo links to

Site Administrator:
Copyright  ADA  Equal Opportunity

MissouriFamilies is produced by the College of Human Environmental Sciences,
Extension Division, University of Missouri