A microwave that looks slightly tilted, a coffee maker that moves when you press a button, or a small appliance that never sits perfectly still: the issue may not lie with the device itself. The countertop, table, or shelf it rests on can have a tiny irregularity that is almost invisible to the naked eye. To spot it, a very simple trick is to use one or more coins. Temporarily slid under one of the device’s feet, they help detect a possible level difference and estimate its magnitude.
The coin trick to level a microwave
The principle relies mainly on the uniform thickness of the coins. When an appliance sits correctly, each of its feet should normally be in contact with the surface. If it wobbles slightly when you apply pressure on one side, there may be a small gap under one of its supports. A coin can then serve as an improvised gauge. If it exactly fills that gap and the appliance stops moving during the test, this indicates that a height difference exists at that spot. The aim is not to permanently modify the installation, but to pinpoint precisely the source of the instability.
This method can notably be used with a coffee maker, a small microwave, or certain relatively light and easy-to-move household appliances. You simply place them in their usual location, then gently check whether they wobble. When one of the feet appears slightly detached from the surface, you can slide a coin underneath and observe the result. If the movement persists, a second coin can possibly help gauge a somewhat larger gap, according to the site El Cronista. The number and thickness of the coins thus provide an approximate indication of the compensation needed to restore a perfectly horizontal appliance.
The right support to stabilize a microwave over the long term
This check may seem anecdotal, but an irregular surface can be bothersome in daily use. A coffee maker poorly positioned might move when you handle its reservoir or its filter holder, while a small device set at an angle may shift slightly with each use. Before blaming the feet or the device’s frame, the coin test helps determine whether the problem simply stems from the support. A slightly warped table, a countertop that isn’t properly leveled, or a worn surface can be enough to create this small imbalance.
However, coins should be considered a diagnostic tool rather than a permanent solution. Even if the appliance seems stable with the coin under its foot, it’s wiser to correct the issue with a device genuinely designed for that purpose. An appropriate shim, an adjustable foot, or a non-slip pad can offer better long-term stability. A metal coin can slip, move during cleaning, or eventually fail to support the foot properly. Its main value remains to quickly measure the space to be corrected before opting for a more reliable installation.
A method reserved for lightweight devices like microwaves
Prudence is also warranted depending on the type of equipment involved. This method is best suited for small, relatively light devices that stay still during operation. It is far less appropriate for heavy machines, devices that produce strong vibrations, or appliances prone to movement. In these situations, it is preferable to use directly the adjustment systems provided by the manufacturer or accessories specifically designed to support the device’s weight. After any modification, the appliance should remain perfectly stable, with no perceptible tilt and with every foot fully supported.
Thus, placing a few coins under a microwave or a coffee maker is not meant to create a makeshift installation. This trick mainly serves to reveal a small level difference that would be hard to identify otherwise. Easy to find and of constant thickness, coins provide a practical reference point for evaluating the space beneath a foot and understanding where the wobble originates. Once the irregularity is identified, they can be removed in favor of a shim or a proper adjustment. A rudimentary test, but useful before undertaking a more durable correction.
