BELARUSTV July 3, 2024
Check the sap, now we will check the quality of natural birch sap on a refractometer device, the main physical and chemical indicator when receiving sap is soluble solids, yeah, what kind of dry substances could there be in the sap . Well, this is directly sugar. And exactly on the prism of the refractometer we drop a drop enough and it turns out very well , we also also look at the laboratory at the university we reveal the bacterium, the virus, and what do you see there . Tell us nothing so far, nothing, but what should he see there . Well, there is an intersection of dark and light. Yes, ye...