Lacto-fermented fruit chutney like this strawberry-jalapeño variety can build up pressure. Be careful-- don't tighten the lid and then leave it!<br /><br />Recipe: <a href="http://www.fermentersclub.com/strawberry-chutney" target="_blank" rel="nofollow">http://www.fermentersclub.com/strawberry-chutney</a><br />...<br /><a href="https://www.youtube.com/watch?v=wxCSXxRlVJk" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=wxCSXxRlVJk</a>