We filter the birch sap through cheesecloth and place it on the stove.
![Roll up birch sap](https://i.washerhouse.com/images/5/525-zakatyvaem-berzovyy-sok.jpg)
Add sugar at the rate of 6 tablespoons per three liters of juice. While the juice is heating up, prepare the jars. They need to be washed thoroughly with soda, and then filled 1/3 with boiling water, covered with a lid for seaming and left for 5-10 minutes.
Wash the lemons and oranges cleanly and cut them into thick slices; put 2-3 slices of each fruit in each jar.
![Roll up birch sap](https://i.washerhouse.com/images/5/526-zakatyvaem-berzovyy-sok.jpg)
We put currant branches in some jars.
Keep an eye on the juice on the stove; as soon as it starts to boil, turn it off. The water from the jars must be drained and hot juice poured into each one.
![Roll up birch sap](https://i.washerhouse.com/images/5/527-zakatyvaem-berzovyy-sok.jpg)
Cover with a lid and roll up. In this case, it is better to place the jar of juice on the floor, on a towel, so it is more convenient to roll it up.
![Roll up birch sap](https://i.washerhouse.com/images/5/528-zakatyvaem-berzovyy-sok.jpg)
Check that the lid does not rotate and is seated tightly. We turn the rolled up jars upside down, cover them with something warm: a jacket, a blanket, and leave them for several hours.
![Roll up birch sap](https://i.washerhouse.com/images/5/529-zakatyvaem-berzovyy-sok.jpg)
Now you can enjoy delicious aromatic birch sap all year round!