Char and peel the peppers (see sidebar). Allow the peppers to come down to room emperature. Halve the peppers and remove the seedpod and stems. Chop the peppers.
In a medium saucepan, combine the vinegar, lemon juice, olive oil, garlic, oregano and salt and bring to a boil over medium heat. Add the peppers and toss them in the marinade.
Have ready 3 clean pint jars (or a combination of half-pints and pints) and bands, and new lids that have been simmered in hot water to soften the rubberized flange. Spoon the peppers into the jars and cover with the marinade, making sure the garlic and oregano are distributed evenly throughout the jars. Leave ½ inch of headroom. Wipe the rims, place on the lids, and screw on the bands fingertip tight.
Process the jars in a water bath for 15 minutes. Process the jars for an additional 2 minutes for every 1,000 feet above sea level. Remove from the water, let the jars rest for 24 hours and then check the seals. If the jars seem a little greasy, it is OK. Just wipe them down with a bit of vinegar. The peppers may float at first but don’t worry; they will settle down.