Loosely screw two-part metal lids onto the jar, but don’t tighten them. Put the jars on the steamer rack and put the lid on the pot. Adjust the heat to maintain a simmer and cook for 20 minutes.

To learn more about the Sourdough fermentation jar project checkout the promotional video below. “Sourdough starter is always ready for your next baking, stored in a versatile cup-lid.

What about placing a slice of bread in your biscuit jar? Well, according to a home hacks group on Facebook, these handy tricks can keep your food fresher for longer.