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.
Since the smaller sugars that come from amylase action on starch are sweeter tasting, if you hold a cracker in your mouth and swish saliva around it, you may notice the appearance of a sweeter taste. Fat digestion also begins in the mouth with the secretion of the enzyme lingual lipase by glands under your tongue.Although this enzyme doesn't do much with the food while it's in your mouth, it does move on down with the food to your stomach, where it can start to break down about 10-30% of the food's fat content.ince the smaller sugars that come from amylase action on starch are sweeter tasting, if you hold a cracker in your mouth and swish saliva around it, you may notice the appearance of a sweeter taste. Fat digestion also begins in the mouth with the secretion of the enzyme lingual lipase by glands under your tongue.