Check the color of dried flowers. Whether it is sun-dried rose tea or directly sun-dried rose tea, the color of rose tea without sulfur fumigation is purple and reddish. The outermost petals have some purple-black colors, and the deeper they go, the purple color will appear. The rose tea smoked with sulfur is pink and bright in color, and there is no dark purple formed by natural drying.
After soaking in hot water, observe the normal roses in tea soup. After soaking in hot water, the color of tea soup changes slightly faster than that of sulfur-containing roses, because sulfur has the function of fixing color and the color is light yellow. If soaked for a long time and wet for 20 minutes, the color of water will turn brown. However, the color of rose tea smoked by sulfur changes slowly, the color is dark, and there is absolutely no natural yellowish color.
The color change of the receptacle has not been smoked by sulfur, but the receptacle near the petals is green with a little brown, and the petals between the receptacle and the petals are yellow, which is the trace left after baking. However, if it is a sulfur-smoked rose, the color of the receptacle is brown, without any green, and the petals near the receptacle are white, which is a very obvious feature of sulfur-containing rose tea.
When buying rose tea, pick up some flowers with your hands and put them under your nose to smell them gently. Rose tea that is really not dried by sulfur has a strong rose fragrance. It has been said that rose tea with good quality has only a weak rose fragrance, and those with strong fragrance are all spiced. Ladies and gentlemen, if you don't believe me, you will understand by drying a few roses yourself. Really naturally air-dried rose tea really has a very strong rose fragrance. There is also sulfur-smoked rose tea, hold it in your hand and smell it. There is almost no aroma of roses, but there is a sour taste.
Integrity of roses Sulfur-smoked roses are easily broken, and a box of rose tea often has many pieces. In the mouth of some sellers, only naturally air-dried roses are easily broken, while those roses with good integrity are added with some artificial preparations. If you hear these remarks, don't believe the integrity of rose tea, whether it is quick-dried or sun-dried.
Smell it quickly after brewing. Put three or five roses in the cup, rush into hot water of about 90 degrees, and then smell it quickly at the mouth of the cup. Roses that have not really been smoked with sulfur will give off a very strong rose fragrance and a special fragrance belonging to flowers and plants at that time when boiling water rushes in. This is easy to distinguish. When hot water rushes in, the sulfur-smoked roses will smell a pungent smell, which masks the fragrance of roses. There are also some sulfur-containing roses, which will emit an abnormal aroma when washed into boiling water. This is definitely not the fragrance of roses, but an essence that masks the smell of sulfur.
Judging from the taste, if you have drunk rose tea that is really naturally dried, the taste of rose tea must be deeply remembered on the tip of your tongue. When you take a sip of rose tea, there will be a slightly lighter rose fragrance in your mouth, as well as a slightly astringent taste of flowers and leaves, which is particularly mild, but this taste exists. However, the rose tea smoked with sulfur will feel a spicy feeling on the tip of the tongue after drinking it, which is very important to distinguish whether the rose tea contains sulfur residue.
In addition, I would like to remind you that once you buy sulfur-containing rose tea, even if you drink it in a small amount, the residual sulfur will not affect your health, but you can't drink it for a long time, such as a whole month or a whole year. Once you find that the rose tea you drink is smoked with sulfur, you can drink more boiled water and eat some detoxified food every day to let the sulfur residue in your body be excreted as soon as possible.