Veggie juice is rich in vitamins, with less salt than store-bought. You will need an electric juicer for this recipe.
Working in batches, press the tomatoes, celery, carrots, and horseradish through an electric juicer into a large bowl. Stir in salt and lemon juice. Pour vegetable mixture through a fine sieve into another large bowl or a pitcher. Divide vegetable juice evenly between 2 glasses. Serve each with a lemon wedge.