Wash & Inspect Your Gear
Wash jars and lids in hot, soapy water. Make sure you visually inspect them before each use; look for cracks or uneven rims
that may hinder the sealing process.

Keep Jars Warm & Clean
Keep jars hot until ready to be filled (the same goes for the lids and rings). To do this, place the clean lids, rings and jars upside down in a large pot filled 2 inches (5 cm) deep with hot water. Alternatively, leave the jars and lids in the dishwasher after running it.

Fill Jars & Remove Air Bubbles
Using your funnel, fill jars with food, leaving at least 1 inch (3 cm) of headspace between the food and the rim of the jar. Use a nonmetallic spatula to press the food against the inside walls of the jar, thus removing any air bubbles.

Wipe & Tighten
Wipe any food off the rims of the jars and center a clean lid on top of the jar. Screw the ring on and tighten, but not too much; overtightening may prevent air from escaping, thus creating a vacuum seal inside the jar.