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HEATWAVE & EGGS: SHOULD WE FEAR A SHORTAGE?

Entier
Innovation
19 Août 2026 · 4 min

Heatwave Report

Heatwave & Eggs: Should We Fear a Shortage?

Reduced laying, smaller eggs, sometimes sparse shelves. We take stock, and most importantly: what can replace eggs without sacrificing deliciousness.

This summer, an unexpected topic made its way into kitchens: eggs. Between repeated heatwaves and sometimes sparse shelves, many people ask the same question when baking a cake: "what if there were no more eggs?"

Let's take stock, calmly and with the real figures. Then let's look at the good news: cooking without eggs, today, no longer means sacrificing taste.

What's really happening this summer

The heat doesn't just tire us out. It also affects laying hens, and therefore egg production. Specifically, three effects combine: hens eat less when it's very hot, so they lay less; eggs can be smaller, with more fragile shells; and in some farms, increased mortality is observed during the most intense peaks.

≈ 1M
fewer eggs per day vs average (CNPO)
−15 to −30%
drop in laying at 32°C continuously
41.5°C
a hen's temperature, as she doesn't sweat

Why heat causes egg production to drop

There's a simple biological reason. A hen already lives, under normal conditions, with a body temperature of around 41.5°C. And unlike us, she doesn't sweat. To cool down, she pants, reduces her activity, and especially eats less. But less food means less energy to produce one egg per day. This simple mechanism explains the drop in volumes when temperatures stay above 30°C for several days in a row.

So, a real shortage or not ?

Let's be honest, because that's what you really want to know. At this stage, professionals in the industry are reassuring: store supply remains guaranteed and no generalized shortage is announced. The president of the CNPO summarized it simply by ensuring that everyone will find eggs on the shelves.

So, there's no need to panic or hoard. What to remember is rather a tension: declining volumes, eggs sometimes rarer or smaller depending on the location, and vigilance in the coming months, as the corn harvest is expected to be lower and could make chicken feed more expensive.

No shortage. But a good time to discover that you can cook very well in other ways.

The opportunity to try cooking without eggs

Many people have never tried cooking without eggs, simply because they never needed to. And when they do, the surprise is often the same: it works, and it's just as good. Eggs, in cooking, actually play several distinct roles. They bind, they leaven, they add moelleux, they whip into a foam, they thicken. The good news is that for each of these roles, there is now a reliable plant-based solution.

Whole

Binder & moelleux

Cakes, muffins, brownies, cookies. A whole egg alternative provides texture, without an eggy taste.

White

Whips & stabilizes

Meringues, mousses, financiers. A dedicated white alternative to regain volume and hold.

Yolk

Color & creaminess

Creams and sauces. A yolk alternative for richness and beautiful golden color.

Need inspiration to get started? Take a look at our egg-free cookies, or our egg-free omelette for savory dishes.

Want to try?

Discover the Yumgo range: whole egg, white, and yolk, in 100% plant-based versions. The egg without the chicken.

See the range →

Frequently Asked Questions

Is there an egg shortage in France?

No, no generalized shortage has been announced to date. The industry reports a drop in volumes due to heat (approximately one million fewer eggs per day according to the CNPO), but store supply remains guaranteed.

Why does the heatwave reduce egg production?

Because hens eat less when it's very hot and therefore lay fewer eggs. Eggs can also be smaller. At 32°C continuously, the drop in production can reach 15 to 30%.

Can eggs really be replaced in a cake?

Yes. A plant-based alternative to the whole egg provides binding and moelleux, without an eggy taste. The result is astonishing in a sponge cake, brownie, or cookies.

What can replace egg white or yolk?

There are dedicated alternatives: one for the white (to whip and stabilize), one for the yolk (for color and creaminess). Choose according to the recipe.

Sources: France 3 Bretagne and National Committee for the Promotion of Eggs (CNPO), August 2026. To be cross-referenced with a primary source before reuse.