SodaStream bottles generally are not recommended for dishwasher use. The company advises that the heat and pressure inside a dishwasher can impact the bottle's material and seal integrity, potentially compromising its performance and safety. To clean SodaStream bottles, hand washing with mild soap and warm water is recommended. It is important to take care while cleaning, as the bottles are designed to withstand carbonation but may be more delicate when it comes to extreme temperatures. Users should avoid using harsh chemicals or abrasive cleaning tools, as these may also damage the bottles. For specific usage guidelines or further information, it is always a good idea to check the latest recommendations on SodaStream's official website.