In addition to salt water immersion, strong acid and high temperature can also inactivate bromelain. When the temperature reaches 45-50 degrees Celsius, the thermal inactivation of bromelain will be enhanced. So we can soak pineapple in hot salt water, which can not only accelerate the dissolution of salt, but also improve the taste of pineapple. Of course, you can also blanch the pineapple in boiling water for 2 minutes. Such a short time will not destroy too much vitamin C, and it will make pineapple taste sweeter.
Precautions for pineapple purchase
Look at the leaves of pineapple. The probability of sweet pineapple pulp with high and vigorous leaves is greater than that with short leaves. The leaves on the left pineapple are longer than those on the right. Pick the eyes on the left pineapple. Theoretically, the bigger the eyes, the sweeter the pulp.
The place circled with red is called the fruit eye. Pineapples with small cores have more pulp and are sweeter. Where is the core? Observe the surface of pineapple carefully. Is the color even? If the color is uneven, there may be internal injuries.
The above contents refer to Baidu Encyclopedia-Pineapple.