Combine chopped tomatoes, onions, celery, and red pepper into a large bowl. Using the ratio of ½ cup pickling salt to 4 cups cold water, cover ingredients completely with salted water. Add as much salted water as necessary to cover the vegetables. For this amount of vegetables, at least 1 cup pickling salt dissolved in 8 cups water will likely be needed. Make sure the pickling salt is thoroughly dissolved in the water before pouring over vegetables and ensure the brine is cold before being added to the vegetables. [See Note 1 below]
As soon as the chow starts cooking, begin the bottle sterilization process. Wash jars and lids in hot soapy water and rinse.
Fill a large-sized stockpot, fitted with wire rack, about two-thirds full of hot tap water. Place the jars, upright and in single layer, into the water. Use more than one stockpot, if necessary, to accommodate all jars needed for the recipe. Do not stack jars on top of each other in stockpot. Ensure the jars are fully submerged, each jar filled with water, and that the water is at least an inch over the tops of the jars, adding more if necessary. Cover, bring to a boil over medium-high heat, then reduce heat slightly and boil gently for 10 minutes. Turn off heat and leave the jars in the hot water to have ready to fill once the chow is ready.
Center the lids on jars so the sealing compound on the lid edges aligns with the jar rims. Fingertip tighten the ring/screw bands until resistance is encountered. Do not over-tighten. (See Note 2 below regarding lid preparation)
Store properly sealed chow bottles in cool, dark place and allow to rest for at least 2 weeks to allow flavor to fully develop before opening. Use chow within one year of bottling. Refrigerate chow once jar has been opened.
NOTE 1: Coarse pickling salt can be difficult to get fully dissolved in cold water. It may be mixed with warm or hot water and stirred well to dissolve it. Make sure, however, if warm or hot water was used to dissolve the salt that the salt brine has been refrigerated for several hours to ensure it is cold before pouring brine over vegetables.
NOTE 2: While, historically, the lids (with the orange-rust colored gasket on their underside) were preheated in simmering hot water for 1-2 minutes to soften the lid gasket before applying the lids to the hot jars, Bernardin® (the company that manufactures canning lids available in Canada) is now saying that preheating their particular brand of lids is no longer necessary to provide a proper seal as the sealing compound they use in their lid manufacturing performs better at room temperature. They recommend washing the lids in hot soapy water, rinsing them, and setting the lids aside until needed in the canning process.
Note this pertains specifically to the Bernardin® brand of lids. Other manufacturers’ lids may differ so, if you are using another brand of lids, do check the manufacturer’s instructions for lid preparation of their particular brand lids. Typically, if the lids need to be preheated, the method is simply to place the lids in a small pan of simmering hot water over low heat just long enough to heat the rubber piece. This doesn't take longer than a minute or two at most. Do not boil the lids.
[Copyright My Island Bistro Kitchen]