- Fill clean jars using a wide mouth funnel
- Leave headspace ¼ - inch for jellies, jams, butters, and preserves
- Wipe jar rims using a clean wet cloth (photo on right: Courtesy of the National Center for Home Food Preservation, these pictures are for Educator use)
Too Little Headspace?
- Food may bubble out during processing.
- Food deposited on rim may prevent proper sealing.
Too Much Headspace?
- Food at the top is likely to discolor.
- Jar may not seal properly, because not all air may be forced from jar.
Screw on Lids
- Use new two-piece lids
- Wash lids and screw bands in hot soapy water and rinse
- Heat lids in hot water; follow manufacturer’s direction
- Position the treated/heated lid on clean jar rims
- Screw the band down fingertip tight
- Not too tight. Do not use force. Note: tightening screw band too tight may result in buckled lids that may not seal properly.