Can stand up to (100?? C) 212?? F for 30 minutes.</br>Can be frozen?? refrigerated?? microwaved or used as boilable soup bags.</br>Constructed of a 3-mil nylon/poly material with a high puncture and abrasion resistance.</br>Keeps food fresh up to five times longer.</br>BPA-free and FDA approved.</br></br>Product Description</br></br>Able to withstand boiling temperatures longer