In the chemistry of baking, an egg isn’t just an ingredient; it’s a measurement.
When baking, precision starts before the oven is even on. From NZ Grade 6 standards to the ‘Jumbo’ impact of a Grade 8, discover why the size of your egg is the secret to a perfect rise.
In New Zealand, we typically bake with Grade 6 eggs, which weigh approximately 53g–58g. However, many recipes online (mine included) ask for, or use Grade 7.
- The Problem: Using a Grade 4 egg when a recipe calls for Large can lead to dry cakes and poor structure.
- The Rule of Thumb: If a recipe doesn’t specify, assume 50g-60g of liquid egg (roughly a Grade 6 or 7).
- Pro Tip: If you only have Jumbo eggs, whisk them in a bowl first and weigh out exactly what you need.
Dane’s Tip: Most of my recipes are tested with Grade 7 eggs. If you only have Grade 8s, whisk one in a bowl and use a tablespoon less to avoid rubbery baking!
Quick Size Guide
| Grade | Name | Min. Weight per Egg | Best Use |
| Grade 4 | Pullet | 43g | Best for soft boiling; too small for most cakes. |
| Grade 6 | Standard | 53g | The “Golden Standard” for NZ baking recipes. |
| Grade 7 | Large | 62g | Great for rich custards or heavy doughs. (My personal preference when baking) |
| Grade 8 | Jumbo | 68g+ | Use when a recipe specifically calls for “Extra Large.” |
FAQs
Q. How do I know if my eggs are still fresh?
A.Try the Float Test. Put your egg in a glass of water. If it sinks and lays flat on its side, it’s very fresh. If it stands up on one end, it’s getting older but is still fine to bake with. If it floats to the top? Toss it, it’s past its prime.
Q. Can I use egg whites from a carton?
A. Carton whites are convenient, but they are pasteurised. This means they can be a bit temperamental when you’re trying to whip them into a big, fluffy meringue. They work fine for adding protein to your baking, but for a Pavlova or a soufflé, I would recommend cracking fresh eggs.
Q. Why do my eggs need to be at room temperature?
A. Cold eggs are the enemy of a smooth batter! When you add a cold egg to creamed butter, it causes the fat to seize up and split, giving you a curdled look. Room temperature eggs emulsify perfectly, creating a smooth, strong structure that holds air much better.
Q. What happens if I use a large egg when the recipe asks for jumbo?
A. It many be infrequent that you’ll come across a recipe requesting a jumbo size egg. However, In a single-egg recipe, like a batch of cookies, you probably won’t notice a thing. But if you’re making a sponge cake that calls for four eggs, using a smaller size means you’re missing out on about 40ml of liquid. This can make your cake turn out dry or stop it from rising properly. If your eggs look small, it’s always safer to weigh them!
Q. I forgot to take my eggs out of the fridge! Is there a quick fix?
A. We’ve all been there. Just pop your cold eggs into a bowl of warm (not boiling!) water for about 5–10 minutes. This will take the chill off and get them to the perfect bench temperature while you’re gathering the rest of your ingredients.
Q. Does the colour of the shell matter?
A. Not at all. Whether the shell is white, brown, or even blue, the inside of the egg is the same. The colour is just down to the breed of the hen. Focus more on the freshness and the weight rather than the colour of the shell!
