Rinse 3 times thoroughly with clear water. Lay on towel to dry.

Wash jars. Cook 2 quarts apple cider vinegar and 4 quarts water, 1 cup salt. Cook to hard boil. While waiting for mixture to boil, pack jars with cucumbers. Pour hot tap water over cucumbers. Let set 10 minutes. Drain water. Add 1 teaspoon dill seed and 1/2 teaspoon crushed red pepper, 1 1/2 cloves garlic to each jar. Boil jar lids.

Fill jar with boiling vinegar mixture. Seal with hot lids. Let sit for 7 days before opening.