[header] How to pasteurize [title] Set up a double boiler. [step] Fill the bottom pan of a double boiler with approximately 2 inches (5 cm) of water. Place the smaller, top pan into the first. 
[substeps] If you do not have a double boiler, you can use the combination of a large stockpot and a small saucepan, metal bowl, or thick glass bowl. The smaller dish must be small enough to fit into the larger stockpot.