frc - Food Reality Check

What is E321? – Complete guide to understanding Butylated Hydroxytoluene in your food

What is E321? Complete guide to understanding E321 (Butylated Hydroxytoluene) in your food The Quick Answer E321 is a synthetic antioxidant used to prevent fats and oils from becoming rancid.…

How Food is Made

How Is Mustard Made? Complete Process Explained

How Is Mustard Made? From tiny seeds to tangy condiment through enzymatic reactions and grinding. The Overview Mustard is produced by grinding mustard seeds with liquid (water, vinegar, or wine)…

E-Numbers & Additives

What is E514? – Complete guide to understanding sodium sulfate (Glauber’s salt) in your food

What is E514? Complete guide to understanding sodium sulfate (Glauber's salt) in your food The Quick Answer E514 is sodium sulfate, commonly known as Glauber's salt or sal mirabilis. It's…

E-Numbers & Additives

What is E515? – Complete guide to understanding potassium sulfates in your food

What is E515? Complete guide to understanding potassium sulfates in your food The Quick Answer E515 is potassium sulfates, available as two forms: potassium sulfate and potassium bisulfate. It's a…

E-Numbers & Additives

What is E516? – Complete guide to understanding calcium sulfate (gypsum) in your food

What is E516? Complete guide to understanding calcium sulfate (gypsum) in your food The Quick Answer E516 is calcium sulfate, commonly known as gypsum or selenite. It's a white mineral…

E-Numbers & Additives

What is E517? – Complete guide to understanding ammonium sulfate in your food

What is E517? Complete guide to understanding ammonium sulfate in your food The Quick Answer E517 is ammonium sulfate, a white crystalline powder used as a dough conditioner and yeast…

E-Numbers & Additives

What is E520? – Complete guide to understanding aluminum sulfate in your food

What is E520? Complete guide to understanding aluminum sulfate in your food The Quick Answer E520 is aluminum sulfate, also called alum (though technically distinct from true double-sulfate alums). It's…

Sweets & Baking

Cream of Tartar in Baking: What It Is & Why It Stabilizes Egg Whites

Cream of tartar (potassium bitartrate) is an acid byproduct of wine production with multiple baking applications: stabilizing whipped egg whites, activating baking soda, and adjusting pH in recipes. Understanding its…

Sweets & Baking

How Yeast Ferments Dough: The Biology Behind Rising Bread

Bread dough rises through yeast fermentation—living microorganisms consuming sugars and producing carbon dioxide and alcohol. Understanding this biology explains why fermentation time matters, why temperature control is critical, and why…

Sweets & Baking

Is Aluminum in Baking Powder Dangerous? Dose & Safety Data

Some baking powders contain aluminum compounds (sodium aluminum sulfate) as acids. Concerns about dietary aluminum are widespread but based more on precaution than established health risk. Understanding aluminum sources, exposure…