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28 May 2026

Electricity bill: how a glass of water in the oven reduces your energy consumption

Illustration image © TopTenPlay
Symbolbild © TopTenPlay

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The Oven: An Indispensable But Energy-Intensive Appliance

Present in every kitchen, the oven stands out as an essential piece of equipment, whether you are an amateur chef or simply concerned with preparing daily meals for your family. It is impossible to give it up, despite its voracious energy appetite which places it in the same rank as the dishwasher, the refrigerator, or the washing machine.

Energy bills remain a major concern, particularly with record temperatures turning our interiors into furnaces. Turning on the oven in these conditions amounts to overheating an already burning house while driving up costs. Latest generation models certainly promise reduced consumption, but the figures speak for themselves: a class A electric oven consumes up to 1.5 kWh per hour. Older class F or G appliances can quadruple this consumption, turning every use into a financial sinkhole.

Many try to limit the use of this appliance, but what to do when necessity calls? The solution lies not in renunciation, but in optimization. A little-known tip is circulating more and more: placing a glass of water in the oven. This simple technique would solve two common problems simultaneously, starting with that of excessive bills.

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Illustration image © TopTenPlay
Symbolbild © TopTenPlay

The Reality Of Energy Consumption

These figures are not just an abstraction: 1.5 kWh per hour for a class A oven is a measurable reality that weighs directly on your monthly budget. The equation becomes even more painful with obsolete class F or G models, whose consumption can reach 6 kWh for a single hour of use. Four times more than a high-performance appliance, for an identical result on the plate.

Manufacturers tout their latest generation ovens as economical solutions, promising a substantial reduction in consumption. Technology is progressing, certainly, but even the most advanced models remain greedy appliances that mobilize significant power. Faced with this immutable reality, many seek to limit their use, giving up certain recipes or favoring other less energy-intensive cooking methods.

This avoidance strategy quickly finds its limits. Certain dishes require the enveloping heat of the oven, and culinary culture cannot be reduced to perpetual compromises. The challenge therefore consists of exploiting the appliance to its full potential without seeing bills skyrocket. The glass of water trick fits precisely into this search for optimization, a method that is gaining ground among those who refuse to choose between culinary passion and budget control.

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Illustration image © TopTenPlay
Symbolbild © TopTenPlay

The Glass Of Water Trick: A Little-Known Solution

This much-sought-after optimization involves a disconcertingly simple gesture: placing a glass of water in the oven before each use. The method is attracting a growing number of Italian users, who see it as a concrete response to their daily concerns. Two problems solved simultaneously with an accessory present in every kitchen.

The first benefit directly concerns the energy bill. The water absorbs part of the heat and redistributes it progressively, creating a more stable atmosphere that reduces the thermostat’s heating-cooling cycles. This natural thermal regulation limits consumption peaks, those moments when the appliance calls for its maximum power to reach or maintain the programmed temperature.

The second advantage concerns the quality of the cooking itself. The humidity released by evaporation prevents excessive drying of food, preserving its softness while forming a golden crust on the surface. Roasts remain tender, breads develop an airy crumb, gratins avoid charring before being cooked through.

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This technique fits perfectly into the Italian culinary tradition, where the search for the ideal texture counts as much as the taste itself. Without renunciation or sacrifice, it allows you to continue simmering, roasting, and gratinating while simultaneously controlling energy expenses and the quality of preparations. A pragmatic reconciliation between gastronomic pleasure and economic responsibility.

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