Canning Pineapple Quantity: An average of 21 pounds is needed per canner load of 7 quarts; an average of 13 pounds is needed per canner load of 9 pints--an average of 3 pounds per quart. Quality: Select firm, ripe pineapples. Procedure: Wash pineapple. Peel and remove eyes and tough fiber. Slice or cube. Pineapple may be packed in water, apple juice, white grape juice, or in very light, light, or medium syrup. In a large saucepan, add pineapple to syrup, water or juice, and simmer 10 minutes. Fill jars with hot pieces and cooking liquid, leaving 1/2-inch headspace. Adjust lids and process according to the recommendations in Table 1. Table 1. Recommended process time for Pineapple in a boiling-water canner. Process Time at Altitudes of Style of Pack Jar Size 0 - 1,000 ft 1,001 - 3,000 ft 3,001 - 6,000 ft Above 6,000 ft Hot Pints Quarts 15 min 20 20 25 20 30 25 35