Straight Sided Jar

The body offers a defined area to develop a wrap label or direct-print design. Ask for the actual usable height and circumference, keeping artwork clear of the heel and shoulder transitions. Trial the intended stock and adhesive rather than scaling a different jar's label.

No. Request evidence that the selected glass was produced and evaluated for filled-candle use, then validate the finished candle with its wax, wick, fragrance, and decoration. A convenient wide mouth or similar appearance is insufficient to establish candle suitability.

Fill a sample to the proposed working level and have users remove the product with the intended tool or gesture. Check mouth clearance, bottom access, and residue near the cap. Choose internal depth and opening dimensions from this trial before approving nominal capacity.

Test the chosen cap and liner through the expected opening and closing cycle using filled jars. Record removal feel, residue on threads, and any change in leakage behavior. Have your filler establish application settings for the actual assembly instead of relying on hand tightness.