1 For a rare roast, after 15 minutes take the temperature of the meat. 2  It should be around 54ÂºC. 3  For medium rare take the temperature after 20 minutes, it should be around 60ÂºC. 4  For medium, wait 30 minutes and test for 65ÂºC. 5  For well done, 40 minutes and 75ÂºC.
Dealing With Bromelain. The burning you feel in your mouth after eating too much pineapple is due to bromelain, an enzyme that digests protein. Pineapple is the only natural source of the enzyme, according to The University of Melbourne.ealing With Bromelain. The burning you feel in your mouth after eating too much pineapple is due to bromelain, an enzyme that digests protein. Pineapple is the only natural source of the enzyme, according to The University of Melbourne.
Canker sores on tongue. These sores, also called aphthous ulcers, can develop anywhere in your mouth but often occur on the side of your tongue or along the gum line. When talking, eating or swallowing, tongue sores can become irritated and cause a burning sensation.