Stock vs. Broth

Stock and broth are often used interchangeably, but they're made differently and serve different purposes. Understanding the distinction helps you choose the right one and make better versions at home.

The key differences

Why bones matter

Bones contain collagen, which converts to gelatin during long cooking. This gelatin gives stock its:

• Silky mouthfeel
• Ability to set when cold (jiggle test)
• Sauce-thickening properties
• Rich body that broth can't match

Making better stock at home

Essential bones

• Chicken: Backs, necks, feet (high collagen), wing tips
• Beef: Knuckles, neck bones, oxtail, marrow bones
• Pork: Trotters, neck bones
• Fish: Non-oily fish bones and heads (snapper, halibut)

The process

1. Roast bones (optional, for brown stock) at 400°F/200°C until deep brown
2. Cover with cold water — starting cold extracts more gelatin
3. Bring to bare simmer — never boil (causes cloudiness)
4. Skim regularly — remove foam and impurities
5. Add aromatics late — mirepoix in final 1-2 hours
6. Strain carefully — don't press solids (causes cloudiness)
7. Cool quickly — ice bath, then refrigerate

Time guidelines

• Chicken stock: 4-6 hours
• Beef stock: 8-12 hours
• Fish stock: 30-45 minutes (longer = bitter)

Store-bought options

When buying commercial:

• "Stock" — often just labeled broth; check for gelatin
• Look for — short ingredient lists, no MSG, low sodium
• Better Than Bouillon — concentrated paste, good flavor
• Bone broth — marketing term for stock, usually good quality

When to use which