A few of my pots and cookie sheets have rusted and I've been too paranoid to eat off themShould I throw them out?
You don't say what you are usingThere are many different kinds of yarns being sold, and many of them are not suitable for afghansIf you are using the big box stores ( like Walmart) who only sell acrylics, then you are not going to get a nice afghanYou should use something of better qualityOf course, my favourite is wool, or alpaca, or llamaThose are more expensive, true, but they are really soft, and will last a very long time and always be comfortable and warmPlastics are NOT warm and will look ratty after a few washingsDo yourself a favour and use good quality materials to make anything for best results.
As for the cookie sheets, just line them with aluminum foil, parchment paper or a silicone fiberglass SILPAT baking mat before you use them to prevent the food from coming in contact with the rustIf they are cast iron cookware, put them into your SELF-CLEANING OVEN cycle at 500+ degreesThe rust will turn to powder and brush right offYou can then re-oil or reseason the pans to prevent them from rusting againBut don't do this with any other type of pan, as plastic handles and other metals will not hold up to that heatBrillo or SOS pads or steel wool will scour the rust off stainless steelIf it's on the outside of the pans, don't worry about itOnly clean the cooking surfacesRust comes from oxidized metalHuman beings are not meant to ingest rust, and rusty metal can cause health issues like tetanus if you step on a rusty nail or cut yourself on a rusty canYou have choices, but high quality cookware with a non-stick coating makes clean-up a breeze and cooking a pleasure! ;-) I suggest you invest in T-Fal or RevereWare and make sure you use non-metal spatulas and utensils to preserve the cooking surface coating.