>>2770599The final step is pasteurization, there are many ways to do it, what I do is put jars into an oven and set it to 110 C for 20 minutes.
Let them cool off and check if lids are airtight by pressing them or placing jars upside down for a few minutes and checking for leaks.
At this point you are done, ideally you should store jars in dark, cool and dry place.
Wait at least a week before opening, ideally at least two weeks.