1, first soak the pine nuts in clear water for 1 hour, soak the shell to be soft, then drain the water and steam it in a steamer for half an hour, then take it out and let it dry and cool naturally, and stir-fry it slowly with low fire after cooling. Turn it over more, and the pine nuts that slowly swell with heat and shrink with cold will open, and when most of them are opened, they can be taken out of the pot and then stir-fry.

2. Stir-fry the clean yellow sand in the pan, then mix 2 tablespoons of white sugar with 60 grams of warm water to make it saccharified evenly, and then pour it into the yellow sand. When the caramel smell comes out, turn the fire down, pour the pine nuts into the pan and stir-fry with the yellow sand for about 5 minutes, and then take out 1-3 capsules to see what color the pine nuts are.

If it's yellow, it means it's ripe. If it's not, fry it for about 2 minutes and then take 1-3 to see the color of the nuts. After frying, take it out of the pan immediately. If it takes too long, it will fry and paste. After taking it out, sieve the yellow sand with a sieve, so that most of the fried pine nuts can be opened and eaten immediately after cooling.

3. First put the pine nuts in the microwave oven for 5 minutes, then take them out and let them cool, then put them in the microwave oven for 5 minutes, and then take them out and pour them into ice water or cold water. This is also the principle of making pine nuts open by expanding with heat and contracting with cold. Drain the water as soon as you see the pine nuts open, instead of soaking them in water all the time, then put them back in the microwave oven for 3 minutes and bake the water dry.

Tips for identifying open pine's opening method;

1, pine nuts with physical openings are dark in color, rough in surface and uneven in openings. This kind of pine nuts will have a longer shelf life, a more fragrant taste and a better taste.

2. The color of fried pine nuts is yellow, the surface is shiny, the hand feel is greasy and slippery, the opening is uniform and long, and the shelf life of this pine nut is short, but the taste is good.

3. The pine nuts with drug openings are yellow in color, with flat and fine particles and even openings. This kind of pine nuts has a short shelf life, poor taste, and some have astringency and odor.