The invention relates to the technical field of
processing and preparation of medicinal and edible drinks, in particular to
gastrodia elata Pu'er tea and a preparation method thereof. The preparation method sequentially comprises the following steps: treating crushed
gastrodia elata decoction pieces with
cellulase, and filtering to obtain first supernate and first decoction dregs; performing
water extraction and
filtration on the first
medicine residue to obtain a second supernatant and a second
medicine residue, and performing
ethanol hot-dipping extraction on the second
medicine residue twice to obtain an extracting solution; combining the extracting solution and the two supernatants, concentrating, adding povidone K30, stirring, performing
ultrafiltration, and concentrating the permeate to obtain a
gastrodia elata extracting concentrated solution;
drying, crushing and activating Pu'er ripe tea, soaking in hot water for three times, combining tea soup, and filtering to obtain a Pu'er tea extracting solution; and mixing the two extracting solutions, adding
maltitol, uniformly mixing, and spray-
drying to obtain the
gastrodia elata Pu'er tea
powder. According to the technical scheme, the technical problem that
gastrodia elata Pu'er tea in the prior art is not ideal in taste and appearance can be solved, the eating convenience is improved, the product is rich in
gastrodin and tea
polyphenol, and the tea
powder is suitable for long-term storage to guarantee quality and large-scale production to guarantee efficiency.