Cleaning BBQ trays in the dishwasher can be a very effective shortcut, but only when the tray material, coating, and size are dishwasher-safe and the tray has been prepped correctly first. For homes in the UK, USA, and Canada, the safest method is to check the manufacturer’s guidance, remove loose grease and burnt bits before loading, place the tray so it does not block spray arms, and use a strong cycle only when the tray material can handle it. The big caution is that not all BBQ parts belong in the dishwasher; cast iron, seasoned surfaces, and delicate coated items can be damaged by heat, detergent, and drying cycles.
Why BBQ trays are hard to clean
BBQ trays collect a mix of grease, char, carbonized marinade, and sticky protein residue, which is much tougher than everyday food soil. That is why a dishwasher often works best as the final stage of cleaning, not the first step. If you put heavily caked trays straight into the machine without prep, you can clog the filter, spread grease around the tub, and still end up with a tray that needs hand scrubbing afterward.
Check the material first
The material of the BBQ tray matters more than almost anything else. Stainless steel and chrome-plated grill trays are often dishwasher-safe, while cast iron should generally never go in the dishwasher because the seasoning can be stripped and rust can form. Non-stick trays can also be risky if the coating is delicate, and some trays are labeled hand-wash only even if they look sturdy.
Follow the label
The first rule is to read the manufacturer’s instructions or look for a dishwasher-safe symbol. Which? and Bosch both stress checking whether the tray is safe for the dishwasher before loading it, because safety depends on the specific product rather than just the general tray type. If there is no clear guidance, hand washing is the safer choice.
Pre-clean before loading
Even dishwasher-safe BBQ trays should be pre-cleaned before going into the machine. The best practice is to scrape off large chunks of food and grease, rinse or soak the tray, and remove loose residue with a sponge or cloth before loading. This step makes the dishwasher’s job easier and reduces the chance of greasy buildup inside your appliance.
Soak stubborn residue first
For trays with burnt-on grease or thick char, soaking is usually the best first move. Cleanipedia recommends soaking baking or BBQ-style trays in hot soapy water, then removing softened residue before sending them through the dishwasher for a final clean. Hunker also notes that pre-soaking helps loosen stubborn grime and reduces the chance that the dishwasher will simply bake residue onto the tray during the wash and dry cycle.
Use the dishwasher as the final step
Think of the dishwasher as the polishing stage rather than the main degreaser. Once the heavy residue has been loosened, the dishwasher can remove film, remaining grease, and food traces more efficiently. This is especially useful for stainless steel BBQ trays, grease trays, and removable grill accessories that are designed to handle machine washing.
Place trays correctly
If the tray is large enough to fit, it should be loaded so it does not block the spray arms or sit too close to the heating element. Which? recommends making room by adjusting rack height or flattening prongs if needed, but the tray should still allow water to circulate freely. The dirty side should generally face the center of the rack so the spray can reach the grime more directly.
Lower rack or top rack
Most BBQ trays belong on the lower rack if they are large and sturdy enough, while smaller removable trays or grease pans may fit better on the top rack. Bosch’s guidance on barbecue cleaning suggests placing grates in the lower rack after soaking and scraping off large chunks. The key is stability: the tray must not fall, tip, or block the washer arms during the cycle.
Choose the right cycle
A stronger wash cycle is often best for greasy BBQ trays, especially if the tray is stainless steel or chrome-plated. Which? suggests an intensive wash for barbecue equipment after use because greasy outdoor-cooking items usually need more cleaning power than everyday dishes. However, if the tray has a coating, paint, or delicate finish, a gentler cycle may be safer.which.co+3
Use dishwasher detergent only
Use a proper dishwasher detergent, not general dish soap. Dishwasher detergent is formulated to break down baked-on grease while avoiding excessive suds, which could interfere with machine performance. For very greasy BBQ trays, using the correct dose matters because too little detergent can leave residue and too much can leave film.
Beware of cast iron
Cast-iron BBQ trays or grates should not be washed in the dishwasher in most cases. Which? specifically warns that the seasoning layer will be removed, exposing the iron to rust. If you own cast iron, hand clean it, dry it thoroughly, and re-season it if needed instead of relying on the dishwasher.
Protect the dishwasher itself
Very greasy trays can affect the dishwasher if they are not pre-cleaned properly. Excess fat can move into the filter, drain path, or tub and create clogs or smells. That is why Which? recommends rinsing or at least removing most greasy residue before loading barbecue items.
Clean the filter afterward
After washing greasy BBQ trays, the dishwasher filter should be checked and rinsed if needed. This helps prevent grease buildup and keeps the next load from picking up BBQ odors or residue. If the tray was especially dirty, it may also be useful to run a quick empty rinse cycle afterward.
When hand washing is better
If the tray is cast iron, heavily coated, oversized, or marked hand-wash only, hand washing is the safer route. Hunker notes that even if a tray is metal, dishwasher cleaning may still cause warping or extra buildup in some cases. Hand washing is also better for trays with decorative finishes or parts that could corrode.
UK, USA, and Canada fit
This advice works across the UK, USA, and Canada because BBQ tray care depends mostly on material and construction rather than geography. The main thing readers need is to follow the manufacturer’s instructions, because “BBQ tray” can mean anything from a stainless steel grease tray to a coated grilling accessory. Hard-water and detergent differences may slightly affect spotting, but they do not change the basic safety rules.
BBQ tray cleaning checklist
- Check the manufacturer’s instructions or dishwasher-safe label.
- Scrape off large food chunks and loose grease.
- Soak the tray if residue is burnt on.
- Load the tray so it does not block spray arms.
- Use a suitable dishwasher cycle and proper detergent.
- Clean the dishwasher filter after very greasy loads.
- Never dishwasher clean cast iron or seasoned surfaces.
FAQ
Can I put BBQ trays in the dishwasher?
Yes, if the tray is made from dishwasher-safe material such as stainless steel or chrome-plated metal and the manufacturer allows it.
Should I soak BBQ trays first?
Yes. Soaking helps loosen burnt grease and makes the dishwasher more effective.
Can cast iron BBQ trays go in the dishwasher?
No, cast iron should generally not go in the dishwasher because the seasoning can be stripped and the metal can rust.
What cycle should I use?
A strong or intensive cycle is usually best for greasy stainless steel BBQ trays, but delicate or coated trays may need a gentler setting.
Will a dishwasher clean heavily burnt BBQ residue?
It can help, but it works best after soaking and scraping first; the dishwasher alone may not remove thick, baked-on grime.
How do I stop grease from clogging the dishwasher?
Pre-clean the tray before loading it, and check the filter afterward if the tray was especially greasy.
