Liquid beef stock

Name: Liquid beef stock
Prep time: 20 min
Cook time: 3 h 20 min
Total time: 3 h 40 min
Cuisine: American
Ingredients: 10 g vegetable oil; 1 brown onion; 1 carrot; 50 g celery; 2 garlic cloves; 400 - 500 g beef; 1 tsp sea salt; 10 black peppercorns; 5 allspice berries; 2 dried bay leaves; 1200 - 1400 g water