Determining whether plastic items are dishwasher safe can be essential to avoid damage or potential health risks. Here are some ways to identify if plastic is dishwasher safe:
Check the Label: Many plastic items, especially food containers and kitchenware, come with labels indicating whether they are dishwasher safe. Look for phrases like "Dishwasher Safe" or "Top Rack Dishwasher Safe." These labels are usually found on the bottom or side of the item.
Inspect the Numbering: Most plastic products have a recycling symbol on them with a number inside. This number is known as the Resin Identification Code (RIC) and indicates the type of plastic used. Dishwasher-safe plastics are typically labeled with RIC numbers 1, 2, 4, and 5. The RIC number is usually located at the bottom of the item inside the recycling symbol.
- RIC #1: PET or PETE (polyethylene terephthalate) - Usually dishwasher safe.
- RIC #2: HDPE (high-density polyethylene) - Generally dishwasher safe.
- RIC #4: LDPE (low-density polyethylene) - Usually dishwasher safe.
- RIC #5: PP (polypropylene) - Generally dishwasher safe.
Look for "Dishwasher Safe" Symbols: Some plastic items might have a specific symbol, like a plate or glass with water droplets, to indicate they are dishwasher safe. This symbol might be present on the packaging or directly on the product.
Check the Manufacturer's Instructions: If the item does not have any clear labeling, check the manufacturer's website or packaging for instructions regarding dishwasher safety. They may provide guidance on whether the plastic item can be safely washed in the dishwasher.
Consider the Age and Condition: If you have an old plastic item, the dishwasher safety may not be guaranteed. Over time, plastic can become more brittle, leading to potential cracking or warping in the dishwasher.
It's important to note that even if a plastic item is labeled as "dishwasher safe," it's a good practice to place it on the top rack of the dishwasher, away from the heating element at the bottom, as the high temperatures and harsh detergents at the bottom of the dishwasher may still cause damage.
If you can't find any indication of dishwasher safety or if you are unsure about the plastic's suitability, it's best to err on the side of caution and wash the item by hand using warm, soapy water.