iSi Slim Silicone Spatula Best for Jars, Blender, and More.  Top Seller and Highly Ranked. Red Thin sharp edges slide cleanly under food. 1.5" slim profile is perfect for cleaning jars and blenders. Heat resistant up to 600 degrees. Great for cooking. Silicone is safe for non-stick surfaces and won't absorb food odors or colors. Spring steel interior give flexiblity plus stiffness Highly hygenic and dishwasher safe