Test all jars for leakage before using. To do this, fill with water, put on rubber and cover, seal and invert.
Sterilize all utensils, jars, covers, etc., by covering with cold water, and boil for 10 minutes. Use only new rubbers and dip in boiling water just before using.
Use a wide-mouthed funnel when filling jars to avoid loss of material and keep jar rim clean.
Invert all jars after filling and sealing.
Fruit should be sound, firm and not overripe. All fruit should be carefully prepared.
Clean fruit, clean hands, clean utensils, and a clean kitchen free from flies, are essential for safety and success.
Keep products in a cool place. Avoid freezing in winter.