Passthrough Dishwashers

A passthrough dishwasher is a type of dishwashing machine that is designed for use in commercial kitchens. Passthrough dishwashers feature a hood that is pulled down to commence the washing process. They may also have connecting inlet and outlet benches on either side of the unit for dirty and clean plates to be placed pre and post-wash – hence the name ‘passthrough dishwasher.’ The dishwasher may either be positioned straight between benches or in a corner to maximise space utilisation.

Many passthrough dishwashers recycle their rinse water throughout cycles and are also available in single or three-phase power variations. Three-phase units use slightly more power than the 240V versions but are much more efficient as they can heat up, rinse and drain much faster thanks to the extra capacity. When running a passthrough dishwasher on single phase 240V, the dishwasher will take considerably longer to heat and reheat the rinse water, thereby slowing down the whole dishwashing process.

Passthrough dishwashers are typically much larger than domestic dishwashers and can wash up to 900 dishes per hour!. They are also generally more expensive, but their efficiency and capacity make them a worthwhile investment for any busy restaurant.

Restaurants use hundreds of plates, glasses, and pairs of utensils every day. Your kitchen has to manage high volumes of washing up before, during, and after each service — failure to do so will affect the overall workflow of your restaurant and can also be a health and safety hazard. The last thing you want is for customers to receive food on a dirty plate!

Many commercial kitchens opt to use passthrough dishwashers as they can handle large loads frequently without impacting workplace efficiency. A passthrough dishwasher is remarkably easy to use. Simply load the dishwasher with your dirty dishes, set the cycle and wait for your clean plates, glassware and utensils to be ready.

Many passthrough dishwashers come equipped with special features to make the process of washing dirty dishes easier and even more effective. The Fagor Evo-Concept-Pass-Through Dishwasher, for example, offers thermostatic temperature control, a built-in automatic rinse dispenser and detergent doser, and a safety magnetic switch to open the hood. These types of features can guarantee a safe and comprehensive clean each and every time.  

With so many passthrough dishwashers to choose from, how can you settle on the right appliance for your commercial kitchen?

There are a few factors to keep in mind when deciding on a passthrough dishwasher. First, consider the size of the unit. Passthrough dishwashers are available in a variety of sizes, so it’s important to choose one that will fit in the space you have available without impacting the floor plan of your kitchen.

Next up, think about the water and energy usage of the unit. Some models are more efficient than others, so it’s worth comparing different models to find one that meets your needs without resulting in thousands of extra dollars in energy and water bills. 

Finally, consider the features that are important to you. Some passthrough dishwashers come with built-in sanitising systems, while others have additional rinse cycles, reverse osmosis or storage options. By taking these factors into consideration, you can be sure to choose a passthrough dishwasher that’s right for your restaurant.

Passthrough dishwashers have a number of advantages over traditional undercounter dishwashers. 

First up, they are quite large and can accommodate a fairly sizeable load of dishes. The Hobart Profi Glass & Dishwasher with Vapostop, for example, has a nominal capacity of 60 racks per hour, which can equate to 1,080 plates or 2,160 glasses per hour. This volume is large enough for most restaurants. This model also has built-in steam recovery, which means it does not require a separate exhaust canopy above it.

Second, passthrough dishwashers (with rinse pumps) boast a higher water pressure, meaning they can clean dishes far more effectively in any location, even where water pressure is lower than ideal for other dishwasher models. They also typically come with a range of settings, meaning you can tailor the cycle as per your requirements. For example, the Hobart PROLITE High Opening XL Width Dishwasher comes with three automatic cycles — a short, standard and intensive program. Whether you just need to give your dishes a quick rinse or they require a thorough scrub, there’s a passthrough dishwasher and appliance setting for you.

Finally, passthrough dishwashers typically have quite a short cycle time, so you can get your dishes clean and back into service as quickly as possible. This is particularly important for large-scale kitchens where access to plates, glassware and cutlery can make or break your service.

Passthrough dishwashers are an excellent choice for any food service business that needs to wash a large number of dishes quickly and efficiently.

Passthrough dishwashers are designed to be relatively easy to install. However, it's recommended to consult with a professional installation service or the manufacturer to ensure correct placement, proper plumbing connections, and compliance with local regulations.

Absolutely! Passthrough dishwashers are specifically designed to handle high volumes of dishes, making them perfect for busy commercial kitchens. Their durable construction ensures they can withstand heavy use without sacrificing performance.

Yes, passthrough dishwashers are versatile and can accommodate various types of dishware and utensils commonly used in commercial kitchens. However, always ensure that the dishwasher you choose is compatible with the specific items you intend to clean to avoid any issues.

Investing in an energy-efficient passthrough dishwasher is essential to save on utility bills. Look for models with features like temperature control, water-saving options, and energy-saving modes. Additionally, loading the dishwasher efficiently and running full loads can further enhance energy efficiency.

Loading dishes into a passthrough dishwasher is crucial for efficient cleaning. Make sure to scrape off excess food and arrange dishes strategically to maximize cleaning capacity.

The duration of a washing cycle can vary depending on the specific model, but typically it ranges from 1 to 3 minutes. Choose a dishwasher that offers efficient cycles to save time and energy.

Regular maintenance and cleaning are crucial to keep a passthrough dishwasher running smoothly. Follow the manufacturer's guidelines regarding cleaning intervals, filter maintenance, and descaling. Keeping up with maintenance will extend the lifespan of your dishwasher and maintain its performance.

When purchasing a passthrough dishwasher for your restaurant, consider factors such as capacity, energy efficiency, durability, ease of use, and maintenance requirements. Evaluating these factors will help you make an informed decision while ensuring the best value for your money.

To achieve optimal cleaning results, it's recommended to use commercial-grade dishwasher detergents specifically formulated for passthrough dishwashers. These detergents are designed to tackle tough stains and ensure sparkling clean results.