在装有架子插入物的大锅中煮沸。Carefully put 4 empty half-cup (4 fl. oz) Mason jars (use 8 if you’re doubling the recipe) or 2 empty half-pint (8 fl. oz.) Mason jars (use 4 if you’re doubling the recipe) and their metal screw-on bands in the water and reduce the heat to a simmer; simmer until ready to use. Heat the lids in very hot water for 5 minutes to soften the flange. (Don’t boil the lids when canning, as it might damage them and compromise the seal later.)
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