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.
Your tongue can also swell and burn due to certain types of anemia, such as seen with iron deficiency and vitamin B12 deficiency. The condition may also be as a result of other factors, such as general lifestyle, diet, allergies and other environmental factors. It might also be as a result of ingesting hot foods or drinking overly hot drinks as this can physically burn the tongue and cause long-lasting irritation.