In general, the length of time you will be required to boil the jars for, will depend on the height your location is ‘above sea level’. While this is certainly an estimated length of time,TAG Level – How to Make Pickles the general rule of thumb is fairly straight forward. As a base, you should boil your pickles for at least 5 minutes (at sea level), and then add 5 minutes for each addition 1000 feet that your location may be above sea level. This means, for example, if you live in Seattle, which is basically at sea level, you would only boil for 5 minutes; whereas, if you live in Idaho, you would add 5 minutes of boiling time for the additional 1000 feet of height (est.). You can use your mobile phone’s GPS to determine your location’s elevation, or there is a very simple tool available for checking your elevation.