Meat extracts Meat extracts are now largely produced as a by-product of corned beef manufacture and other meat canning operations. The basic procedure is to cook the meat to be canned at 95-100 C for ca. 30 minutes. The cooking water is filtered to remove solids and f coagulated protein and concentrated, initially under vacuum but in the final concentration stage in an open pan. Boiling in an open pan is considered essential to develop the characteristic favour of meat extract when beef is used, but chicken extract may be concentrated entirely under vacuum. At the end of the process fat as allowed to separate by gravity and is solidified by cooling to facilitate removal.